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Unit 11 Overview:
Unit 11 Overview:
In unit 11, students reason with shapes and their attributes. They will recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Students are expected to identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
Second Graders further reason with shapes by partitioning rectangles into rows and columns of same size squares. They, then count to find the total number of them. This helps to solidify understanding of a rectangles attributes and builds a foundation for multiplication. Students will continue to explore multiplication by using addition to find the total number of objects arranged in rectangular arrays. Students will also represent the array abstractly by writing a repeated addition equation.
A final component of this unit involves grappling with fraction concepts. Students will partition circles and rectangles into two, three, or four equal shares. They will describe the shares using the words halves, thirds, half of, a third of and a fourth of. Students also need to describe the whole as two halves, three thirds, and four fourths. It is important for students to recognize that equal shares of identical wholes need not have the same shape.
- Students will be able to recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. (2.G.A.1)
- Students will tell and write time from analog and digital clocks to the nearest five minutes, using a.m and p.m (2.MD.C.7)
- Students will be able to partition circles and rectangles into two, three, or four equal shares, and 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. (2.G.A.3)
- Students will use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. (2.OA.C.4)
- Students will be able to partition a rectangle into rows and columns of same-size squares and count to find the total number of them. (2.G.A.2)
Home Activities
Home Activities
Time:
Time:
- Practice telling time on an analog clock to the nearest 5 minutes.
- Discuss a.m. and p.m. and different activities you do during each time of day (a.m. you get ready for school, p.m. you eat dinner)
Shapes:
Shapes:
- Go on a shape hunt. Look for and identify different shapes in your child's environment.
- Guess my shape! Give your child clues about the shape you are thinking of by describing its attributes (number of sides for 2D and number of faces, vertices or edges for 3D. See if he/she can guess based on the clues.
Resources:
Resources:
Videos
Videos
Tangram Puzzle (website: erikson) - This video explains how to make a tangram puzzle for your child.
Tutoring Tips: Mental Math Addition Tricks (website: youtube) - This video models using mental math strategies for addition.
Describe fractions of rectangles by counting equal shares - In this video you will learn how to describe the fraction of a rectangle by counting the number of shares.(2.G.A.3)
Partition rectangles into same-sized squares by creating columns and rows - In this video you will learn how to partition a rectangle into same-sized squares by creating columns and rows. (2.G.A.2)
Websites/Games
Websites/Games
Shapes - (Khanacademy) Learn how shapes have different numbers of corners, side lengths, and so on. Use these properties to help you recognize shapes and answer questions.
Fractions of Shapes - (Khanacademy) Learn how to break shapes into equal parts and complete practice problems.
Clock Shoot - Telling time to the hour, half and quarter
Compare Clocks - Compare times to match the activity
Giraffe Pull- Half and quarter past and til
Giraffe Dash - Tell time to win the race!
Time Keeper - Practice reading analog clocks.
Math Words
Math Words
These are vocabulary words that students will be exposed to throughout the unit.
- array
- column
- equal
- equation
- partition
- rectangle
- repeated addition
- row
- total
- angles
- attributes
- closed shape
- cone
- cube
- cylinder
- edges
- faces
- hexagon
- open shape
- pentagon
- polygon
- prism
- quadrilateral
- rectangle
- shape
- side
- sphere
- square
- surface
- A.M.
- analog clock
- digital clock
- equal
- fourths
- half hour
- half past
- halves
- hour
- hour hand
- minute
- minute hand
- o’clock
- partition
- P.M.
- quarter
- shares
- thirds
- time
- three dimensional
- triangle
- two dimensional
- vertex
- whole
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