Essential Question for students (objective): How can you solve problems involving decimal lengths?
Supplies: video (length 1:46), note-maker
CCSS: 5.NBT.7, MP#2 – Reason Abstractly and Quantitatively
Instructional Format: Video, student problem-solving, group or individual work
Lesson Description: There are many ways to use this video in your math class. I filmed it with the express purpose of having students practice adding, subtracting, and multiplying decimals.
1) You can show this video (1:46) at the beginning of any unit You can have them work on the problem at the end of daily lessons (or once a week) armed with new knowledge that they are exploring in class. Students use the note-maker to help record their problem-solving work. Or you could revisit the video at the end of any unit as a formative check to see what the students have learned about working with decimals and whether they can apply that knowledge.
2) You could show this video as a warm-up activity after the students have learned some basic decimal operations. It is a great way to explore the real-life application of decimal distances.
Extensions: The extension can involve multiplication, but an advanced student can solve it any number of ways.
Cautionary notes/ misconceptions/additional connections: It may be helpful to have base ten blocks as well as blank number lines.