Before teaching this lesson, I read How the Grinch Stole Christmas with my students. If you haven't read it yet, you'll need a little longer before you start the math lesson to read this story aloud. See attached video:Why use the Grinch? Connecting to Lit Standards for why I connected this lesson to the Grinch!
We read about the Grinch and we saw he changed. At first he stole Christmas presents from the Who's. But after he learns the real meaning of Christmas, he brings some back. We have story problems today that show us how the Grinch changed.
Story problems do not always have one action. Sometimes one action happens and then something else happens right after, just like in the Grinch!
Your thinking job is: How can I solve story problems where 2 actions happen?
This objective pushes MP1, Make sense of problems and persevere in solving them. Students learn how to handle a problem where 2 actions take place!
The first problem I'll present to students has low numbers so students can experiment with solving 2 part story problems without dealing with complex numbers.
There were 10 presents in the Who houses. The Grinch stole 5 of them. How many presents are still in the Who houses?
Now the Grinch brings 6 presents to the Who houses. How many presents do the Whos have now?
I'll have students solve the second part of the problem at their desks. After 7 minutes of work time, I'll have students bring their work to the rug and share it with a partner.
I'll choose just one strategy to share because I want to focus more on how students worked through the problem, less on how they actually solved it.
Partner talk: How was your strategy the same or different from your teammate?
Students solve a 2 part story problem at their desks. Students also have a writing portion on the second page. There is a word bank there for students to help them with explaining their thinking. This is aligned with the CCSS emphasis on writing across the curriculum.
The numbers in the story problems are differentiated for students.
Group A: Intervention
Students use numbers under 15, cubes provided
Group B: Right on Track
Students use numbers under 30
Group C: Extension
Students use numbers under 100
See attached pdf for the independent worksheet. The numbers are left out of the story problems so teachers can write in numbers that are most appropriate for their students.
Students share their work with a partner before closing out for the day. To celebrate our learning, we will sing and listen to The Grinch Song on youtube!