Illustrative Math Alignment: Grade 7 Unit 7

Topic

Equations

Description

This video explains solving a two-step equation involving addition and multiplication. The key concepts include isolating the variable by undoing operations using inverse operations. For example, subtracting from both sides to handle addition and dividing to simplify the coefficient of the variable. Vocabulary includes variable, coefficient, isolate, and inverse operation. Applications focus on understanding algebraic manipulation to find solutions.

Topic

Equations

Description

This video explains solving equations with addition and division where the divisor is negative. Steps include subtracting the constant and multiplying by the negative reciprocal. Vocabulary includes negative divisor, reciprocal, and isolate. Applications focus on managing division in equations with negative values.

Topic

Equations

Description

This segment explains solving equations with addition and division where both the divisor and the constant are negative. Key steps include subtracting the constant and multiplying by the negative reciprocal. Vocabulary includes negative reciprocal, isolate, and simplify. Applications refine algebraic problem-solving involving multiple negatives.

Topic

Equations

Description

This tutorial focuses on solving equations with subtraction and division. Steps include adding the constant to isolate the variable and multiplying by the reciprocal of the divisor. Vocabulary includes reciprocal, subtraction, and isolate. Applications reinforce division concepts in algebraic equations.

Topic

Equations

Description

This video covers equations with subtraction and division, where the divisor and the constant are negative. Techniques involve adding the constant and multiplying by the negative reciprocal. Vocabulary includes negative reciprocal, subtraction, and isolate. Applications focus on handling division with negative values in equations.

Topic

Equations

Description

This segment covers equations involving addition and multiplication where a negative number appears. It emphasizes isolating the variable by subtracting the constant, simplifying, and dividing by the coefficient. Vocabulary includes isolate, simplify, and negative numbers. Applications extend algebraic problem-solving skills with negative values.

Topic

Equations

Description

This video introduces solving equations with subtraction and multiplication. Steps include adding the constant to isolate the variable and dividing by the coefficient. Vocabulary includes subtraction, isolate, and coefficient. Applications enhance understanding of balancing equations with subtraction operations.

Topic

Equations

Description

This segment focuses on handling subtraction and multiplication when a negative number is involved. Techniques include adding the constant, simplifying, and dividing by a positive coefficient. Vocabulary includes subtraction, negative coefficient, and isolate. Applications involve solving equations with more complex negative value interactions.

Topic

Equations

Description

This tutorial demonstrates equations with addition and negative coefficients. The process involves subtracting the constant, simplifying, and dividing by the negative coefficient. Vocabulary includes negative coefficient, simplify, and inverse operation. Applications refine algebraic methods in equations with negative variable multipliers.

Topic

Equations

Description

This video examines equations with addition, multiplication, negative coefficients, and negative constants. It outlines steps to isolate the variable, simplify, and divide by the negative coefficient. Vocabulary includes negative constants, simplify, and isolate. Applications improve skills in handling equations with layered negative components.

Topic

Equations

Description

This segment focuses on equations with subtraction and negative coefficients. Steps include adding the constant, simplifying, and dividing by the negative coefficient. Vocabulary includes negative coefficient, isolate, and subtraction. Applications highlight algebraic problem-solving with negative coefficients.

Topic

Equations

Description

This video presents subtraction, multiplication, and negative coefficients alongside negative numbers. Solving requires adding the constant, simplifying, and dividing by the negative coefficient. Vocabulary includes subtraction, negative values, and isolate. Applications stress solving equations with multiple negative components.

Topic

Equations

Description

This tutorial covers equations involving addition and division. Key steps are subtracting the constant and multiplying by the reciprocal of the divisor. Vocabulary includes reciprocal, division, and isolate. Applications build on foundational algebraic techniques involving division.

This video looks at the algebraic properties of equations of parallel lines. Included is a geometric proof.

This video looks at the algebraic properties of equations of perpendicular lines. Included is a geometric proof.

Topic

Solving Equations

Description

This video introduces one-step equations that require one mathematical operation to solve. The focus is on addition equations, indicated by the addition symbol. The solution process involves using subtraction to isolate the variable. Key math concepts include solving equations, inverse operations, and maintaining equation balance. Key vocabulary includes addition, subtraction, equation, and inverse operation. Practical applications involve basic algebraic problem-solving.

Topic

Solving Equations

Description

This video covers one-step division equations, identifiable by the division symbol or fraction notation. Multiplication is applied as the inverse operation to solve for the variable. Key concepts include solving equations, inverse operations, and keeping equations balanced. Vocabulary emphasized includes division, fraction, multiplication, inverse operation, and equation. These equations are practical for solving proportional problems and foundational algebraic expressions.

Topic

Solving Equations

Description

This tutorial demonstrates solving one-step multiplication equations. Such equations are characterized by a coefficient next to the variable. Division is used to isolate the variable. The key math concepts are solving equations, using inverse operations, and maintaining balance. Important vocabulary terms include multiplication, coefficient, variable, division, and inverse operation. Applications include foundational algebra skills for understanding more complex equations.

Topic

Solving Equations

Description

This video explains how to solve one-step subtraction equations. These equations are identified by the subtraction symbol, and solving them involves using addition to isolate the variable. Key concepts discussed are solving equations, inverse operations, and keeping equations balanced. Important vocabulary includes subtraction, addition, inverse operation, and equation. Applications include solving simple algebra problems encountered in everyday contexts.

Topic

Quadratics

Description

This video explains completing the square to solve quadratic equations. Key terms are binomial square, roots, and simplification. It explores the width of a satellite dish, triangle dimensions, and composite figure measurements.

Quadratic functions are foundational to many aspects of mathematics, from graphing parabolas to solving real-world problems involving areas and trajectories. This video is particularly relevant to understanding how these functions operate and provides practical examples to reinforce the theory.

Topic

Rational Numbers

Description

This video introduces rational numbers, defined as ratios of two integers where the denominator is non-zero. Key concepts include fractions, ratios, and integers as rational numbers. Applications involve classroom ratios and number line representation with positions like 5/4 and -2/4. It emphasizes rational numbers in everyday contexts, such as temperature comparisons using decimals.

Topic

Rational Numbers

Description

The video explores the interaction of rational numbers with exponents. Examples include expressing square roots as rational exponents and simplifying complex expressions. Applications in geometry and algebra highlight the versatility of these concepts for further mathematical studies.

Topic

Rational Numbers

Description

This video discusses evaluating numerical expressions with rational numbers, emphasizing the order of operations (PEMDAS). Examples include calculating areas of rectangles and finding the slope of a line using the Cartesian plane. It highlights parentheses' role in operations and real-world applications like geometry and measurements.

Topic

Rational Numbers

Description

The video explores variable expressions involving rational numbers. Examples include finding combined areas of rectangles using algebraic expressions and analyzing the trajectory of a ball using a formula with time as a variable. It demonstrates real-world applications of rational number operations in algebra and physics.

Topic

Rational Numbers

Description

This video focuses on graphing rational numbers on the Cartesian coordinate system, calculating slopes, and writing line equations. It explains conditions for positive, negative, zero, and undefined slopes using delta-y and delta-x. Applications include geometry and understanding coordinate relationships.

Topic

Rational Numbers

Description

The video explores rational and irrational numbers. Rational numbers include integers, fractions, and repeating decimals. Irrational numbers, such as the square root of non-perfect squares and pi, are non-terminating and non-repeating. Examples include Pythagorean triples and circle circumference ratios. Applications focus on distinguishing between the two.

Topic

Rational Numbers

Description

This video demonstrates how rational numbers are plotted on a number line, showing positive and negative values sequentially. Examples include ecosystem measurements and thermometers interpreted as number lines. It highlights the infinite nature and precise placement of rational numbers in real-world scenarios.

Topic

Rational Numbers

Description

The video explains absolute value as the distance between two points on a number line. Key examples include altitude changes of kites and submersibles. Techniques involve counting increments or using subtraction. It emphasizes absolute value's role in understanding distances irrespective of direction.

Topic

Rational Numbers

Description

This video presents methods for comparing and ordering rational numbers using number lines. It emphasizes arranging numbers from least to greatest and graphing positions. Real-world applications include submersible depths and relative point positioning.

Topic

Rational Numbers

Description

This video introduces techniques for adding rational numbers. Examples include altitude changes and submersible descents. It covers adding mixed numbers, decimals, and opposites, showcasing the relationship between rational numbers and their negative counterparts, with applications in various contexts.

Topic

Rational Numbers

Description

This video explores subtracting rational numbers, with examples like temperature ranges and vertical distances. Techniques highlight the relationship between subtraction and addition of negatives. Applications include interpreting distances and temperature differences.

Topic

Rational Numbers

Description

The video covers multiplying rational numbers with examples like drilling depths and financial credits. It explains how repeated addition is modeled as multiplication. The mathematical proof demonstrates that multiplying rational numbers yields another rational number.

Topic

Rational Numbers

Description

This video explains dividing rational numbers using examples like sharing pizzas and complex fraction simplifications. It emphasizes rewriting terms to align with the rational number definition and addresses why dividing rational numbers results in another rational number.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

Topic

Solving Equations

Description

This video introduces solving two-step equations involving multiplication and addition. Key concepts include using inverse operations like division and subtraction to isolate the variable. Vocabulary includes variable, equation, inverse operations, multiplication, and addition. Applications include basic algebra.

Topic

Solving Equations

Description

The video explains solving two-step equations that involve multiplication and subtraction. It emphasizes the use of inverse operations such as division and addition. Key terms are variable, equation, inverse operations, multiplication, and subtraction. Algebraic applications are highlighted.

Topic

Solving Equations

Description

The tutorial covers solving two-step equations involving division and addition. It focuses on isolating the variable using inverse operations like multiplication and subtraction. Vocabulary includes variable, equation, inverse operations, division, and addition. Applications are centered on algebraic problem-solving.

Topic

Solving Equations

Description

This video addresses solving two-step equations involving division and subtraction. It demonstrates applying inverse operations, specifically multiplication and addition, to isolate the variable. Terms such as variable, equation, inverse operations, division, and subtraction are emphasized. Algebraic uses are discussed.

In this video, students the basics of equations. They'll learn about true equations, false equations, and conditional equations.

Topic

Systems of Equations

Description

Description: Explores profit and loss through linear functions, focusing on break-even points and business profitability using TI-Nspire for visualizations.

Topic

Systems of Equations

Description

Description: Discusses encryption using linear systems, demonstrating substitution ciphers and matrix-based encoding for secure communication.

Topic

Systems of Equations

Description

Description: Analyzes ballistic missile interception through quadratic systems, graphing missile paths and their intersection as solutions to equations.

Topic

Equations

Description

The video introduces algebraic expressions and their ability to represent both known and unknown quantities. It defines variables as placeholders for unknowns and explains equations as relationships between two expressions. Key concepts include solving for variables and understanding the role of variables in equations. Key vocabulary includes variable, unknown quantity, and equation. The applications discussed include investigations into real-world scenarios such as honeybee populations and river geology.

Topic

Equations

Description

This segment explores the impact of colony collapse disorder on honey production using statistical data. It introduces box and whisker plots and the calculation of mean as statistical tools to analyze honey yields. Key vocabulary includes colony collapse disorder, box plot, and mean. Applications include modeling bee population declines and their broader ecological and agricultural implications.

Topic

Equations

Description

The video investigates the geometry of river meanders using the concept of the meander ratio, calculated as the ratio of a river’s sinuous length to its straight-line length. It uses a TI-Nspire calculator to simulate river paths and compute ratios. Key vocabulary includes meander ratio, sinuous length, and geometric modeling. Applications highlight the mathematical modeling of natural phenomena and the occurrence of pi in nature.

Topic

Systems of Equations

Description

This video introduces systems of equations, solving them graphically, numerically, and with TI-Nspire. Key topics include slope-intercept and standard forms, intersections of lines, and linear systems applications. Examples range from rental car cost comparisons to cell phone plans. The video emphasizes efficient problem-solving methods and practical interpretation of solutions.

Topic

Systems of Equations

Description

In this Math Lab explore profit and loss graphs of linear functions.

In this video, students will explore the core principles of Systems of Equations, developing skills to solve real-world problems effectively. The video includes demonstrations and examples to connect mathematics to everyday life.