Lesson Plan
Rachel Brown, Shaina Hiatt, Jessica Grandlinard
Lesson: Estimation
Length: 25 Minutes
Age or Grade Level Intended: 5th Grade
Academic Standard(s):
Math 5.2.5- Use estimation to determine whether answers are
reasonable in addition, subtraction, multiplication, and division problems.
Performance Objective(s):
Given twelve pictures of the estimation jars, the students will make a
reasonable estimation for each jar.
Assessment:
The students will fill out a worksheet over the twelve estimate
pictures. The teachers will then formatively assess the students’ answers
and determine whether answers are reasonable.
Advance Preparation by Teacher:
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Jar full of jelly beans
Betcha! By Stuart Murphy
Jar estimation worksheet
Computer for Math Live! Website
Jar Guessing Worksheet
Pictures of estimation objects
Procedure:
Introduction/Motivation:
Show students the jar of jelly beans (Gardner: Visual/Spatial).
Have the students guess how many jelly beans are in the jar by having them
write their guess on a sheet of paper. Ask the students, “How did you get
your answer?” (Bloom: Comprehension).
Step-by-Step Plan:
1. Read Betcha to the students.
a. After reading, ask the students the following
questions:
i. What were the two ways the boys were using to
come up with the numbers? (Bloom:
Knowledge)
ii. Is it always appropriate to make an estimate?
(Bloom: Evaluation)
2. Pull up the math live! Website. Play the estimation video
for the students. (Gardener: Visual/Spatial,
Verbal/Linguistic)
3. Hand out the estimation worksheet.
4. Show the students the pictures of the jars. Have the students
label what is in the jar and write their guess. (Gardner:
Intrapersonal, Visual/Spatial)
Closure:
Revisit the jellybean jar. Remind the students that a good
estimate is reasonable and easy to compute. In tomorrow’s lesson, we
will be talking about rounding and how rounding can help us make
good estimates.
Adaptations/Enrichment:
Adaptations: Break problems into smaller steps. Provide extra
information and clues. Give students situation cards.
Enrichment: Write how they got their estimate. Create their own
estimation problem.
Self-Reflection:
 Did the students grasp the concept of estimation?
 Were the students engaged during the lesson?
 Did I explain the concept of estimation effectively?
 Were my objectives met?
 How was my classroom management?
 What should I change the next time I teach this lesson?