Mathematics: Geometry and Spatial Sense
- identify flips, slides and turns, and name slides and turns through investigation using concrete materials and physical motion, and name flips, slides, and turns as reflections, translations and rotations (e.g., a slide to the right is a translation; a turn is a rotation)
Geometry and Spatial Sense vocabulary and concepts
These lessons provide opportunities for teachers and students to gather evidence of learning 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.
  • iPad or computer (1 per student or per two students) with wireless internet access
  • Scratch Jr. app
  • Animated Genres Classroom Curriculum for Grades K-2
  • Clear instructions/success criteria on chart paper or whiteboard/screen
  • Two stars and a wish self-assessment exit card
This is the minds on button.
  • Review the prior knowledge.
  • Discuss mathematical vocabulary of location (slide = translation, turn = rotation).
  • Ask the class what they can share about obstacle course. What is the purpose of an obstacle course? What kinds of obstacles might there be?
  • Explain that the students will be creating their own obstacle courses on Scratch Jr.
This is the action button.
  • Distribute the iPads and open up the Scratch Jr. app - students can work in pairs to start with.
  • They will choose a character from the character library.
  • Provide the students with the success criteria for their task.
  • The students are encouraged to look for incorrect or insufficient movements, then work to debug their program.
This is the consolidation button.
  • Brief gallery walk to allow students to view the work of their peers.
  • Discussion about what was easy/challenging and what could be improved or added for next time.
  • When the student describes their character motion, do they use the terms translation and rotation correctly?
If students are finished early, challenge them to create a more difficult obstacle course (e.g., including more than one character, more than one obstacle, more than one rotation direction, more than two translation directions).
After completing Lesson 4 of the Scratch Jr. Animated Genres Curriculum, students can add backgrounds to their obstacle courses.