Grade 1 - Number
Standard 1.N.9 - Practice adding objects up to 20.
Included Skills: Addition
Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically by: • using familiar and mathematical language to describe additive and subtractive actions from their experience • creating and solving problems in context that involve addition and subtraction • modelling addition and subtraction using a variety of concrete and visual representations, and recording the process symbolically. • Achievement Indicators - Act out a given story problem presented orally or through shared reading. - Indicate if the scenario in a given story problem represents additive or subtractive action. - Represent the numbers and actions presented in a given story problem by using manipulatives, and record them using sketches and/or number sentences. - Create a story problem for addition that connects to student experience and simulate the action with counters. - Create a story problem for subtraction that connects to student experience and simulate the action with counters. - Create a word problem for a given number sentence. - Represent a given story problem pictorially or symbolically to show the additive or subtractive action and solve the problem.