Reflection: Problem-based Approaches Terry's Taco Shack: What Does "How Many More" Mean? - Section 1: Problem of the Day


When I taught this lesson the first time, I simply allowed students to figure out the best strategy to solve this problem.  This worked for many students but I still had students who did not conceptually understand what a comparison question is asking--many of them simply added the two numbers together instead of setting up an appropriate number sentence.  This year, I allowed students to struggle with the problem for a bit, and then modeled using cubes so that students could see clearly what it means to compare two amounts.  By setting out cubes and literally comparing the two amounts, I was able to push students to understand that there was "extra".  Students then saw that they could count the extra cubes to determine how many more tacos were sold on Tuesday than on Thursday. 

 This tactic worked well and I saw many of the students in group A (who were struggling the most with this concept) use cubes in a similar way to me when they did their guided practice and independent work.  In the future, I will continue to model this process so that students can clearly understand what it means to compare two amounts. 

  The role of direct modeling in inquiry based instruction
  Problem-based Approaches: The role of direct modeling in inquiry based instruction
Loading resource...

Terry's Taco Shack: What Does "How Many More" Mean?

Unit 4: Tables
Lesson 3 of 4

Objective: SWBAT solve comparison problems using addition or subtraction strategies.

Big Idea: Students oftentimes struggle with comparison problems since there is no "action" in the problem (i.e: nothing is getting taken away or added). In this lesson, students practice strategies for solving comparison problems.

  Print Lesson
2 teachers like this lesson
Math, Data collection / Organization / Display, addition, subtraction, tables, comparison
  50 minutes
Similar Lessons
Taste Test...Gathering Data
2nd Grade Science » Unit 3 - Apples, Pumpkins and Bread!! OH! My!!
Big Idea: Interpreting and analyzing data within a graph is important to share scientific knowledge.
East Wenatchee, WA
Environment: Suburban
Veronique Paquette
A Grinchy Christmas
1st Grade Math » Properties of Addition and Subtraction
Big Idea: This Grinch inspired lesson pushes 1st graders to attempt 2 part story problems. It also is a great way to introduce the topic in 2nd grade!
New Orleans, LA
Environment: Urban
Amanda Cole
Ben & Jerry are Coming!
1st Grade Math » Reviewing Data Collecting and Graphing
Big Idea: The famous ice cream makers Ben and Jerry will be visiting our classroom and bringing free ice-cream with them. Before they arrive, they have asked the class to figure out what their favorite ice cream topping is. Today, the class will figure that out.
Waitsfield, VT
Environment: Suburban
Thomas Young
Something went wrong. See details for more info
Nothing to upload