Core concept: A collection grows in quantity as more is added to it.
Read the first page of the story and identify the one character, Frances. Read the second page. Ask students to describe what happened to the number of characters.
Use student responses to develop a shared question that invites the investigation of how many characters were in Frances’ house by the end of the story.
Ask students to use their diagrams to find the total number of characters in Frances’ house at the end of the story.
Ask students to share the total they have counted and use ‘Talk moves’ to compare and share reasoning. Select some students to share the methods they used to record each new character and count to find the total. Use student work samples to discuss the different methods to record information about quantities with drawings.
Read the story once more. Add a magnetic counter to the ten-frames or move a bead on a rekenrek, as each new character is introduced. Students can use the final reading of the book to check the diagrams they have recorded and adjust as necessary.
Use the mathematical tool to establish the final quantity and ask students to compare this result with their diagrams. Explain that mathematicians use mathematical tools and review the way problems are recorded to check the accuracy of their work.