Counting and Cardinality
• Count to 100 by ones and by tens.
• Write numbers from 0 to 20.
• Count forward starting with any number (instead of having to begin at 1).
ACTIVITIES AT HOME / VOCABULARY
• Play the license plate game with numbers as you walk through your neighborhood. Have them look for a 1 on a license plate. Then find a 2, then a 3, and so on.
• Write your name and a family member’s name. How many letters are in your name? How many are in your family member’s name? Which name has more?
• Look through a store ad. Cut out numbers 0-20. Put the numbers in order from least to greatest.
• Grab a handful of an item, cereal, beans, etc. Estimate how many pieces you grabbed. Now count them. Was your estimate close?
• Estimate how many spoonfuls it take to finish a bowl of cereal. Count each spoonful as you eat.
• Count how items are plugged into the wall at your home.
• Show the number 5 in as many ways as you can. Use pictures and numbers. / One-to-one Correspondence: Students assign one number to each object as they count
Count On: Starting at a given number and counting forward from that number
Greater Than: A number that has a higher value than another number
Less Than: A number that has a lower value than another number
Equal: Having the same value
What Your Child Will Learn in Kindergarten Quarter 4
Number and Operations in Base Ten& Operations and Algebraic Thinking
• Make or break apart numbers from 11 to 19 into ten ones and some more ones. Use objects or drawings, and record each with an equation (e.g., 18 = 10 + 8) / • Find the number that makes 10 when added to a given number. (e.g., If you have 6 what number is needed to make 10?)
• Represent addition and subtraction in many ways. / • Solve addition and subtraction word problems within 10
• Break apart numbers into pairs in more than one way (e.g., 5 = 2 + 3, 5 = 4 + 1, and 5 = 5 + 0). / • Fluently add and subtract within 5.
ACTIVITIES AT HOME / VOCABULARY
• Use a popsicle stick to represent a ten and beans to represent ones. Using a deck of cards, give your child a 10 card, and draw another number card, then add the numbers together and show the number with sticks and beans.
• Walk from one end of the kitchen to the other and count how many steps, then show how many steps were taken with sticks and beans.
• Use cereal pieces to solve the following problem: Mason has 10 pieces of cereal. He eats 4 pieces. How many pieces are left?
• How old are you now? Subtract one from that number and record it. Add 3 to that number and record it.
• Count backwards from 100. Skip count to 100 by 10s. Which took longer? Write your answer.
• Go outside and find two clovers. Write an equation to show how many leaves are on both clovers.
• Use some fruit to solve the following problem: Ken has 5 bananas in a bunch. He eats some. There are 3 left. How many bananas did he eat?
• Ben had 4 chairs at his kitchen table in the morning. After school there was only 1 chair at the kitchen table. How many chairs are missing? / Place Value: The value of the place of the digit in the number (For example: in 27, 2 is in the 10's place and is worth 20)
Compose: Putting numbers together to make a new number (For example: 5+10=15)
Decompose: Breaking a number apart (For example: 15=8+7)
Equation: A mathematical statement containing an equal sign, to show that two expressions are equal
Add: To join two or more numbers
Subtract: To take one quantity away from another
Ten: A group of ten ones
Equal Sign: Having the same amount or value
What Your Child Will Learn inKindergarten Quarter 4
Geometry
• Identify shapes as two-dimensional (lying in a plane, “flat”) or three- dimensional (“solid”). / • Compare two- and three-dimensional shapes describing their similarities, differences, parts (e.g., number of sides and vertices/“corners”)
• Model shapes in the world by building and drawing shapes. / • Put together simple shapes to form larger shapes.
ACTIVITIES AT HOME / VOCABULARY
• Look around your home for solid shapes. Name at least 3 solid shapes.
• Look around your home for flat shapes. Draw at least three of the shapes.
• Look around your home for circles. Count them and record how many you found.
• Use bendy straw, toothpicks, or pipe cleaners to many shapes as you can. Record the names of your shapes.
• Make a picture using 2 circles, 3 triangles, & 1 rectangle. Describe to a friend how you made it.
• Explore Position words. Use toys to model before, after, above, below, and beside. Describe using attributes. Ex. The blue car is behind the red car. / Two-Dimensional (flat): The outline of a shapesuch as a triangle, square, or rectangle
Square: A four-sided shape with equal sides and corners
Rectangle: A four-sided shape with two sets of sides that are equal and parallel, and four right angles
Circle: A flat shape with no sides or corners
Triangle: A three-sided figure
Hexagon: A shape with six sides
Sphere: A solid shape similar to a basketball
Cylinder: A 3-D shape with two circular faces
Cube: A 3-D shape with six square faces
Cone: A 3-D shape with a curved surface and one circular face
Three-Dimensional (solid): A shape having length, width, and height
Face: The flat surface of a solid figure
Side: Line-segments of shapes
Elementary Mathematics Office, Howard County Public School System, 2012-2013
Visit for HCPSS elementary mathematics program information.