## Mathematics 7 Geometry - Transformations

**Specific Curriculum Outcomes**

**G02**Students will be expected to identify and plot points in the four quadrants of a Cartesian plane, using integral ordered pairs.

**G03**Students will be expected to perform and describe transformations (translations, rotations, or reflections) of a 2-D shape in all four quadrants of a Cartesian plane (limited to integral number vertices).

## G02 activities

**Coordinate Grid Battleship from Illustrative Mathematics -**A few simple modifications can turn the game of Battleship into a great way to practice plotting points on a Cartesian plane. I created a google doc for a version I called Battleshape. Check out Cartesian Battleship from Dr. Robert F. Szalapski for a really nice version.

**Ordered Pairs and Coordinate Plane Target Practice Activity and The (Awesome) Coordinate Plane Activity on Desmos from Nathan Kraft**- In these online activities students will encounter a series of challenges, each asking them to graph a point on the bullseye of a target. They will plot points in all four quadrants, first by plotting points using a table and then by using ordered pairs.

**Treasure Island from Nrich**- This could be used as a class warm-up or to assess prior knowledge. It is an activity to practice using coordinates in the first quadrant to find a list of objects. The objects can then be used to find a hidden treasure.

## G03 Activities

**Transformations Golf from Desmos**- Dan Meyer describes the transformations golf activity available online. There is a purple golf ball (a/k/a the pre-image) and the gray golf hole (a/k/a the image). Use transformations to get the golf ball in the hole. Avoid the obstacles.

**Sidewalk Chalk Transformations from Josh Burker (@joshburker)**- Chalk geometric drawings made with a cardboard template: easy complexity, fun recess. Lots of transformations to describe here: rotations, translations, reflections. Try out different templates: triangle, rhombus, hexagon, etc.

**Pentomio Puzzle and Stars Game from Access Maths**- There are some nice resources here for translation activities. This is from the UK where they use vector notation to record transformations. If you use this, you may want to use an alternate method to record the translations used in these puzzles and games.

**Teaching Transformations with Ms. Pac-Man from Chase Orton**- A lesson to get students engaged quickly and talking to each other about describing motion using Robert Kaplinsky's Ms. Pac-Man task. Students watch a video of a Ms. Pac-Man arcade game and then are asked to describe the movement of Ms. Pac-Man. The definitions of their informal language ended up being recorded and we attached the formal vocabulary to their informal definitions in the next lesson.

**Representing and Combining Transformations from Mathematics Assessment Project**- This lesson unit is intended to help you assess how well students are able to: Recognize and visualize transformations of 2D shapes as well as translate, reflect and rotate shapes, and combine these transformations.

**The Transformations Game from NRICH**- Why not challenge a friend to play this transformation game? Players take it in turns to move. When it is a player's turn, s/he must try to move the playing piece from where it is on the board to another of the marked triangles. S/he must use a transformation or combination of transformations corresponding to one or more of the cards in his/her hand.