2.G.3 Which Pictures Represent One Half?
Discovery Education video “The Number Crew: Action with Fractions.” |
Helpful Tips and Resources for Investigations Fractions Unit 7 (includes a sample task).
End of Unit Assessment Rubrics
Investigation Assessment Checklists
This site provides an extensive collection of free resources, math games, and hands-on math activities aligned with the Common Core State Standards for Mathematics.
Extension Project ideas from the Minneapolis Public School District.
2nd Grade At A Glance and 2nd Grade Common Core Comparison
Progression for choosing numbers for tasks
Investigations K-2 Literature List
Investigations Vocabulary
This is a great website that allows students to identify and create different fractions.
Website has a number of activities and games that align with the CCSS.
Fuel The Brain Games Aligned to Common Core
Games for Grades 2-3
MP1 and MP3 are the main focus for Investigation 1.
MP3 After
students make different kinds of fourths in Session 2.1, having them
prove their pieces are all the same size encourages them to construct
viable arguments and critique the reasoning of others.
MP1 Make sense of problems and persevere in solving them. Student are specifically able to identify how equal parts of a whole group.
MP6 Attend to precision.Viable arguments can be constructed (MP3) when identifying how and why groups can be divided into equal parts. (Great review of odds and evens)
Need to brush up on fractions? Read the teacher note on pages 77-78.
Download “Fun with Frogs and Fractions" from this site. This is a free resource packet that has activities specific to standard 2.G.3.
Suggestions for students who are struggling…
Allow students to use Geoboards to show halves, thirds, and fourths. This will help them get a better visualization of equal shares.
Dividing a Rectangle into Equal Parts activity using a geoboard.
Geoboard Halves for additional practice.
Geoboard Fourths for additional practice.
Give students who are struggling with partitioning
equal parts of squares, circles, and rectangles larger paper in order to
practice folding those shapes using precision and accuracy.
Math Teaching Resources has several activities that can be tied into the standards and made into workshop games to help struggling students.
2.G.3- Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
Pair students up and have them sit back-to-back facing away from each other. Then each student chooses 2 different fraction words (one-half, four-fourths, one-third, etc.). Partner one will describe their fraction word without saying it while partner two will try to guess the word. Listen for students to use the words equal, parts, pieces, whole, etc. Draw 2 of the same sized rectangles on the board and partition into fourths differently. Ask students to prove they are all equal fourths by using “Think, Pair, and Share” with a partner. Listen for students to use precise language while they are explaining. |
Fraction Book List: |
Give Me Half by Stuart J. Murphy
Let’s Fly a Kite by Stuart J. Murphy
Jump Kangaroo Jump! By Stuart J. Murphy
Grandfather Tang’s Story by Ann Tompert
The Hershey’s Milk Chocolate Fractions Jerry Palotta
Picture Pie by:Ed Emberly
The WISHING CLUB a Story About Fractions by Donna Jo Napoli
Piece=Part=Portion by: Scott Gifford
Suggestions for students who fully understand…
Students who have a clear understanding of fractions
can write an argumentative piece explaining why equal shares of
identical wholes need not have the same shape.