Third Grade Content Preview
Unit 05
Energizers (5 min)
Below you will find a new spin on some energizers you may have already used in your classroom. Feel free to continue to use the other energizers listed in Unit 01 by clicking here: http://bit.ly/2evd1Dc.
Number Talks: Subitizing with Counters: Show the quick images on the screen and ask students to talk with a partner about different ways to see how the dots are arranged.
After showing the quick images, give each group of students a bag of counters. Have the students make groups out of the counters, or put the counters into an array. Have the students take a picture of the counters, and these images can be used for the energizers moving forward.
Opening (5-10 min)
Division Problem of the Day: Use the opening time to show the different problem types for division and allow students to use their strategies of how they solved each problem. Problem types and samples shown below:
- Partitive Division: Nicole wants to read 72 pages in 9 days. To meet her goal, how many pages will Nicole need to read each day?
- Quotative Division: Nicole wants to read 72 pages to finish her book. If she reads 8 pages each day, how many days will it take Nicole to finish her book?
Optional Unit 05 Activities
Telling the Difference Between Multiplication and Division (p.13-18)
3.O.2 Quick Start helps students discern whether multiplication or division is needed to solve a problem. In the activity, students first focus their attention on the operation, and then on the computation.
Click here for the Teach Transform Thinking Through the Operations for the activity listed above.
https://drive.google.com/open?id=0BybLi_gTmQZbWVBpdXI3MUtIV2M
Division 1 Racing:
What You Need
10 small toy cars
Division 1 Racing track (Download it here; cut and tape together.)
Division 1 Racing playing cards (Download it here; this 13-page PDF has 100 division problems. Print and cut the cards apart.)
How to Play
For multiple players, decide who's racing what cars in which lanes.
Players take turns drawing a card, answering the problem and moving the car that was in the same numbered lane as the answer. For example, if player 1 drew the card 24 divided by 8, player 1 moves the car in lane 3 up one space. It doesn't matter who wins, The object is to answer the problems correctly and watch to see which car would cross the finish line first.
Encourage students to document division strategies using various types of strategies:
Concrete
Pictorial Models: Arrays
Pictorial Models: Area models
Equal Groups
(See the ETCD on TRS for examples of these models if needed)
King David Divide:
King David Divide is mighty and wise, sharing jewels equally is what he decides. This is the last book in a picture book series, ¨Arithmetic Village¨ which teaches math simply and gently though characters, color and rhyme. King David introduces the concept of division by equally distributing jewels throughout the village. His dog, Rover gets the remainder. Students can stick to numbers that have no remainders for the purpose of this unit.
Click here for a mat to use: https://docs.google.com/a/hayscisd.net/document/d/1w6EkOn7X2ZQLJT6K0PL0vohAeM3AZfzBvc7EPN3GgCk/edit?usp=sharing
1. Guided Math
https://drive.google.com/open?id=1di0hcvzSIq4qD9xFV0oaqDk3Tc0ZIjTUzTys4-2rsnM
2. Technology
(Dreambox and istation are an individual campus purchase for 3-5)
3. Review/Preview:
- Reviewing fractions: in Grade 2, students decomposed two-dimensional figures and partitioned whole objects into two, four, or eight equal parts and named the fractional parts using words. This link contains a pattern block bundle if you scroll to the bottom. The bundle has worksheets about pattern blocks and fractions for the kids to begin to explore pattern blocks and fractions: https://www.create-abilities.com/blogs/create-abilities-blog/hexagon-fractions
- If you scroll to the bottom of this website, there is a free pattern block and word fraction sheet that students could use at this station:
http://bit.do/dSCzT
Fluency:
Teach Transform Activity: Solving One-Step Problems with All Operations
3.O.3 Ramp Up helps students answer a common question when solving word problems—Which operation do I use? This activity focuses on understanding the action in the problem so that the operation choice is clear. (p. 19-29)
3.O.4 Ramp Up helps students discern whether addition, subtraction, division, or multiplication is needed to solve a problem. In the activity, students first focus their attention on the operation, and then on the computation. (p.30-34)
These activities can be found here: https://drive.google.com/open?id=0BybLi_gTmQZbWVBpdXI3MUtIV2M
Closing (5 min): Relate back to learning and language objectives
- Class Journal
- Personal journal
- Partner talks
- Self assessment