Need: My Half Day by Doris Fisher and Dani Sneed
I will read My Half Day to my class. This is a great book to get my little ones thinking about dividing things into halves and other equal amounts. Today's lesson will focus on creating halves. I want my students to identify how a whole can be divided equally into two pieces. (1.G.A.3). Students need to develop a strong foundation in dividing items into equal shares. This knowledge will be extended into later grades and it is important for them to identify that a whole is made of two halves or four fourths.
Need: 2-10" tortillas per student
When I am finished with the book I will give each student 2-10" tortillas and lay them on a paper towel on their desk. Then state;
Then I will model and show my students to take one tortilla and fold it exactly in half and ask;
Students will be constructing arguments and critiquing others reasoning during this activity. (MP3). They will have to clearly express their ideas to explain how the shapes are related to each other, equal each other, and are different than one another.
Need: 2 Hershey bars;
Make sure and watch the video to see how I break apart the chocolate bars and students discover that breaking it differently still gives them equal parts.