Lesson Plan Build It on a Ten Frame This lesson can be used as a pre-lesson for the Scavenger Hunt Addition lesson plan. Academic
Students will be able to solve basic addition problems to 20 by composing a 10.
Students will be able to explain steps to calculate sums within 20 using counters in ten frames as a visual reference.
Introduction (5 minutes)
Play "Flash" to help students form mental images of numbers 11-20. Display a blank Double Ten Frame Mat on a document camera, and ask students how many spaces there are (20).
With the document camera turned off, fill the double ten frames with 14 circular counters.
Turn on the document camera and let children look at the ten frames for three to five seconds before hiding the counters.
Ask students how many counters they saw. Accept all answers, and be sure to ask students to explain their thinking.
Quickly display the double ten frames again, and then hide. Ask students if anyone would like to change their answer.
Finally, allow students to look closely at the counters and discuss strategies for "seeing" the total. For example, do students count each counter individually, or see a group of ten and count on?
Continue with a few more rounds focusing on numbers between 10 and 20.
Tell students that today they will practice
composing, or making, a 10 to solve addition problems using ten frames.