Alice 3D Grade 7/8 Solving Equations – Ratio Problem
Overview:
Many Alice lesson plans and projects have a scenario that provides students with the
starting point for a task or project. This idea is used for a grade 7 or 8 math task.
Given direct instruction, students will develop a three scene Alice 3D animation that
illustrates a method to solve a problem of this type:
A ball falls, rebounds to 76% of its previous height, and falls again. After two bounces,
the ball reached a height of 25 cm. From what height was the ball drop originally?
Resources:
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Alice World with ball bouncing in gym
unlabeled graphic of ball bouncing
Required Elements:
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finished world must have 3 scenes
animation required to illustrate diagram
calculation performed in a loop
characters describes the task and explains your solution as dialogue
Extensions:
 user input defines the ball height, percentage and number of bounces