## 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.

**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.