Problem-Solving + Mathematical Understanding for Young Mathematicians

While not your traditional way of teaching your students addition strategies, these ocean-themed open-ended math word problems are a great way for students to show their understanding of part-part-whole and the different answers that could be correct. Here’s an example open-ended question that is included in this set of task cards:

A surfer saw 10 jellyfish. He counted a saw that some had long tentacles and some had short tentacles. How many could have had short tentacles?  

In this word problem, students can show their understanding of rainbow facts by providing the different combinations of jellyfish with long and short tentacles. 

Each task card word problem includes a worksheet version where students can show their thinking around each of the open-ended word problems.

Math Questions to Ask for Open-Ended Questions

Open-ended questions encourage students to think critically, explain their reasoning, and engage in mathematical discourse – the more conversations you have around these word problems, the better! Here are some great questions you could ask your students:

• What strategies could you use to solve this problem?
• Can you explain the steps you took to solve this problem?
• Are there any shortcuts or tricks you used to simplify your calculations?
• How do you know the answer is reasonable?
• Can you develop a different problem with more than one correct answer?

Easily Prepare This Resource for Your Students

Use the dropdown icon on the Download button to choose between the PDF or Google Slides version of this resource. A recording sheet has been included for each word problem.

Print on cardboard for added durability and longevity. Place all pieces in a folder or large envelope for easy access. 

To keep the task cards out of pockets or under desks, punch a hole in the corner of each to place them on a binder ring. 

Sustainability Tip: Print a few recording sheets on cardboard and slip them into write-and-wipe sleeves. Students can record their answers with a whiteboard marker, then erase and reuse them.  

This resource was created by Cassandra Friesen, a teacher in Colorado and a Teach Starter Collaborator.