This lesson provides students with practice as they find the missing parts of a whole and justify their reasoning. Use alongside the What's That Number lesson or alone as a support lesson for students.
Students will be able to find the missing part of a whole.
Students will be able to explain how to find the missing part of a whole with sequencing words using discussions and peer support.
Choose a number between 10 and 20. This number will represent the whole. Next, decide on part of the whole. Draw a picture to represent the part of the whole on the whiteboard (e.g. If your whole is nine, your part may be five. Draw five dots on the whiteboard). Above your visual representation, write the following: