Lesson Plan #6 Pattern Block Pizza Grade: Grade 2 Strand: Number Sense and Numeration Big Idea: Quantity Relationships (fractions – area model) Expectation(s): Read, represent, compare, and order whole numbers to 100, and use concrete materials to represent fractions and money amounts to 100 ¢. Regroup fractional parts into wholes, using concrete materials (e.g., combine nine fourths to form two wholes and one fourth); Compare fractions using concrete materials, without using standard fractional notation (e.g., use fraction pieces to show that three fourths are bigger than one half, but smaller than one whole) Learning Goal: We are learning that a whole can be formed with different parts. Materials: (lesson adapted from Super Source “Pattern Block Pizza”) Large paper pattern blocks, Smart Notebook pattern blocks or Overhead Pattern Blocks Magnetic Pizza Fractions (optional) Copy of Pattern Block Pizza Game Board for each student Copy of Pattern Block Spinner and Paper clip for each pair Pattern Blocks Sticky Notes Crayons, markers or pencil crayons Getting Started Ask students to image they are going to a pizzeria in Pattern Block Town. Post the large hexagon and explain to students that in Pattern Block Town, all the pizzas are the same size and shape. Post the large green, blue and red pattern blocks and explain that these represent the toppings. Ask the children for ideas on what kinds of toppings each pattern block could represent. Call on a student to cover the pizza completely with toppings. Call on another student to show another way to cover the pizza completely. Have students make predictions about other possible ways to cover the pizza. Have students record their predictions on a sticky note. Beginning Demonstrate how to play the game “Pattern Block Pizza” with the class, before they play this with their partners. Working on It (include questions to consider) Middle Beginning Distribute supplies; each pair will need two copies of Pattern Block Pizza board game, pattern block spinner and pattern blocks. See “Here are the Rules” for the instructions on how to play the game. Teacher circulates making observations/anecdotal notes focusing on the students’ understanding of representations of a whole and fractional parts. When students have completed the game, have them trace around the toppings on their game board and colour them in. If time allows, students may play the game again. Anticipated Student Responses There are six possible combinations for covering the pizza. Some children may think that a pizza is different if it has the same topping arranged in a different way. Refer to “Teacher Talk: Where’s the Mathematics”. Reflecting and Connecting Engage students in a Gallery Walk. Have students post their coloured game board on the board or around the room. Allow students to walk around and observe the various ways that a whole can be formed using halves (red), thirds (blue) and sixths (green). In this particular activity, the symbolic language of fractions does not have to be introduced; keeping the focus on how parts make a whole. As students are observing the various game boards, have them refer back to their prediction on the sticky note and see whether or not their prediction can be seen. Ask for volunteers to talk about their predictions, their game and their thinking. Below are some possible questions to promote class discussion: How do the posted game boards differ? Did anyone find another way to cover a pizza? Show us. How many different ways can a pizza be covered? Are there any ways to cover a pizza that never came up? Why do you think they never came up? Did you ever trade a block for others? When did you do this? What kinds of trades could you make? Can a pizza be covered with only one colour? How many did it take to cover the pizza? How many different colours can I use to cover the hexagon? What does the green/red/blue represent? (Halves, thirds, sixths) Is it okay to have all these different fractions making up the whole? Tell me why. Keep in mind that this lesson is intended to show students that there are many ways that a whole can be represented. As you are asking these questions record the big ideas that are generated by the class discussion on a “What I Learned” chart. Assessment (for, as, of) Assessment for Learning: “What I Learned” chart. Keep the chart posted as an anchor chart for the students to refer back to. End