Mathematics: Geometry and Spatial Sense:
• identify and compare different types of quadrilaterals and sort and classify them by their geometric properties
• relate the names of the benchmark angles to their measures in degrees
• identify, perform, and describe reflections using a variety of tools
Knowledge of the basic Scratch Tips activities, experience creating polygons, knowledge of screencaptures and using a word processor program
These lessons provide opportunities for teachers and students to gather evidence through teacher, peer, and self-assessments; and learning goals and success criteria. See Growing Success: Assessment, Evaluation, and Reporting in Ontario Schools, Chapter 4 for more information.
 Review with students how to construct angles and triangles On chart paper, make a list of the the quadrilaterals and angles we know how to make (e.g.right angle or 90 degrees) Remind students they will be using that knowledge today.

Screenshot of Scratch

• Discuss with the students that for this task they will use Scratch to draw: square, rectangle, rhombus and parallelogram (highlight these on the chart paper).
• Review with students how Scratch allows use of angles.

Screenshot of Scratch.

 Inform students that they should add a description to each of their scripts of code to explain how they know they have completed the task. Students work at computers or mobile devices with Scratch. Remind students to either save their files or take screenshots of their work and paste them into a word processor.

Screenshot of Scratch

 The students will come back together and share how they made each shape. Students share their script on chart paper and/or project on a large screen.
• Students could work in partners or small groups.
• The students could construct one shape at a time and then annotate their ideas
• Perform the same lesson/activity and have partners present creations of the shapes.
• Continuing using Scratch to reflect, translate or rotate shapes.
• Develop a game to share the students knowledge of geometry https://scratch.mit.edu/projects/1952443/