Grade 1 • Mathematics • Number Concepts

Grade 1 Mathematics

Number Concepts

Place Value: the value of the place of the digit in a number
Digit: a symbol used to show a number
Greater Than: (>) a symbol used to compare two numbers, with the greater number listed first (Example: 8 > 6)
Less Than: (<) a symbol used to compare two numbers, with the lesser number given first (Example: 6 < 9)
Equal To: (=) having the same value
Add: to join together sets to find the total or sum
Sum: the answer to an addition problem
Subtract: to find the difference when two groups are compared or to find out how many are left when items are taken away from a group
Difference: the answer to a subtraction or comparison problem

Count objects such as jellybeans in a bowl, pennies in a jar, cheerios in a baggie, etc.
Estimate and then count a given number of objects.
Find numbers in newspapers, magazines, or on items around the house.
Practice counting forwards and backwards starting at any given number within 120 while doing various activities-driving in the car, jumping rope, waiting in line at a store, etc.
Divide a deck of cards evenly between players. Each player flips over a card, the player with the highest card wins the cards. Continue until one player has all cards in the deck.
Put different items into groups and talk about which group has more or less items using the terms greater than and less than.
Roll dice and create numbers. Say what is 10 more or 10 less than that number.
Play "20 Questions" and try to guess a mystery number within 120. (Example: Does your number have 3 digits? Is your number greater than 56?)
Count a number of objects and put them in a cup or bag. Then place more objects beside the cup or bag and continue counting. (Example: With 10 pennies in a cup, start counting on 11 and continue.)
Play board games that involve counting such as Candyland and Chutes and Ladders. Encourage and remind your child to remember that the space he/she is currently on does not get counted twice. Discuss why that would not be helpful in winning the game.