Prerequisites
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Distance Formula - Activity A
Explore the distance formula as an application of the Pythagorean theorem. Learn to see any two points as the endpoints of the hypotenuse … of a right triangle. Drag those points and examine changes to the triangle and the distance calculation.
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Distance Formula - Activity B
Explore the distance formula as an application of the Pythagorean theorem. Learn to see any two points as the endpoints of the hypotenuse … of a right triangle. Drag those points and examine changes to the triangle and the distance calculation.
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Modeling and Solving Two-Step Equations
Solve a two‑step equation using a cup‑and‑counter model. Use step‑by‑step feedback to diagnose and … correct incorrect steps.
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Modeling One-Step Equations - Activity A
Solve one‑step equations using an area model. Drag tiles into two bins, each representing a side of the equation, and isolate … an x‑tile on one side.
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Modeling One-Step Equations - Activity B
Solve a linear equation using a tile model. Use feedback to diagnose incorrect steps.
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Order of Operations
Select and evaluate the operations in an expression following the correct order of operations.
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Points in the Coordinate Plane - Activity A
Identify the coordinates of points in the coordinate plane. Drag the points in the plane and investigate how the coordinates change … in response.
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Points in the Coordinate Plane - Activity B
Identify the coordinates of a point in the coordinate plane. Drag the point in the plane and investigate how the coordinates change … in response.
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Points in the Coordinate Plane - Activity C
Identify the coordinates of a point in the coordinate plane. Drag the point in the plane and investigate how the coordinates change … in response.
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Slope - Activity A
Adjust the coordinates of two points in the plane and find the slope of the line that passes through them.
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Slope - Activity B
Explore the slope of a line, and learn how to calculate slope. Adjust the line by moving points that are on the line, and see how its … slope changes.
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Slope - Activity C
Examine the graph of two points in the plane. Find the slope of the line that passes through the two points. Drag the points and … investigate the changes to the slope and to the coordinates of the points.
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Solving Equations By Graphing Each Side
Solve an equation by graphing each side and finding the intersection of the lines. Vary the coefficients in the equation and explore how … the graph changes in response.
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Solving Formulas for any Variable
Choose the correct steps to solve a formula for a given variable. Use the feedback to diagnose incorrect steps.
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Solving Two-Step Equations
Choose the correct steps to solve a two-step equation. Use the feedback to diagnose incorrect steps.
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Using Algebraic Equations
Translate equations into English sentences and translate English sentences into equations. Read the equation or sentence and select … word tiles or symbol tiles to form the corresponding sentence or equation.
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Using Algebraic Expressions
Translate algebraic expressions into English phrases, and translate English phrases into algebraic expressions. Read the expression or … phrase and select word tiles or symbol tiles to form the corresponding phrase or expression.
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Using Tables, Rules and Graphs
Compare the graph of a linear function to its rule and to a table of its values. Change the function by dragging two points on the … line. Examine how the rule and table change.
