Expressions and Equations

Reason about and solve one-variable equations and inequalities.

Showing 1-7 of 7 results | Sort by: |

Resource | Resource Type Grade Level | Rating |
---|---|---|

This Sketchpad activity, which opens on Geometer's Sketchpad as well as on iOS with Sketchbook Explorer (cataloged separately), is the first of three balance activities in which students develop intuitive strategies for writing and solving simple algebraic equations. Students drag a shape whose numerical value is known onto one side of a scale and then drag copies of a shape with an unknown numerical value to the other side of the scale until both sides are level. Students then solve the equation to determine the value of the unknown shape. A five-minute movie provides detailed instructions and downloadable PDF of teacher notes and student worksheets are also included. | Activity, Lesson Plans, Video Grade Level: 4, 5, 6+ | |

This Sketchpad activity, which opens on Geometer's Sketchpad as well as on iOS with Sketchbook Explorer (cataloged separately), is the third of three balance activities in which students develop intuitive strategies for writing and solving algebraic equations. In this final activity, users must simplify algebraic equations by removing identical shapes from both sides of a scale. A five-minute movie provides detailed instructions and downloadable PDF of teacher notes and student worksheets are also included. | Activity, Lesson Plans, Video Grade Level: 5, 6+ | |

This Sketchpad activity, which opens on Geometer's Sketchpad as well as on iOS with Sketchbook Explorer (cataloged separately), is the second of three balance activities in which students develop intuitive strategies for writing and solving simple algebraic equations. In this follow-up activity, students create and solve balance puzzles in which the variable must first be isolated on one side of an algebraic equation in order to determine its value. A five-minute movie provides detailed instructions and downloadable PDF of teacher notes and student worksheets are also included. | Activity, Lesson Plans, Video Grade Level: 4, 5, 6+ | |

This interactive Flash game provides an opportunity for a player to make decisions and develop strategic thinking by analyzing the uncovered number choices on a game board that includes the integers from -5 to 12. Each player rolls the dice, chooses which number to begin with and whether to add or subtract the other number to produce either a negative or positive result shown on the board. The goal is to be first player to complete a row of three counters either horizontally, vertically or diagonally on the game board. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for support, printable instructions and game board, and a link to a more advanced version of the game (Connect Three, cataloged separately). | Activity, Game, Interactive Media Grade Level: 4, 5, 6+ | |

This iOS app is a puzzle game that makes algebraic thinking both visual and interactive as equations are represented with balance scales, weights, and little creatures called Zogs. The goal at each of the 24 levels is to find the weight of each space creature and assemble a team for the next shuttle mission. Players must apply ideas such as equality, proportional reasoning, variables, and combining groups of objects. | Game, Interactive Media, Mobile App Grade Level: 5, 6+ | |

This animated PowerPoint lesson demonstrates how to substitute the value of a variable in place of the variable's symbol in an algebraic expression, and presents the concept of solving an equation for an unknown variable value. | Demonstration Grade Level: 5, 6+ | |

This iOS app, designed as a companion tool for Shuttle Mission Math, an algebraic reasoning game (cataloged separately), allows players to build and solve their own balance scale puzzles. The player creates teams (from 1-4) using different zog type combinations and solves the puzzle created using the three basic strategies. | Activity, Interactive Media, Mobile App Grade Level: 4, 5, 6+ |