This google slide show is for use with grade 2 students as a routine to build number sense. Strings of expressions are used to build connections and as a springboard for discussion. Each slide has a target addition strategy, though other strategies are encouraged as well.
This google slide show will be used by grade 1 teachers with their students as a numeracy routine. Students should be given time to notice and wonder about each slide. Focus is on composing and decomposing numbers as well as discussion of addition and subtraction strategies. Steve Wyborney is the original creator.
The aim of this lesson is to help students learn the process of subtracting integers through a real world discovery activity. By the end of the lesson students should be able to:
Discover a rule for subtraction integersApply the rule they discover to subtract integers with like signsApply the rule they discover to subtract integers with different signs
Students use double sided chips to manipulate "cold cubes" and "hot cubes" in order to solve the "Chefs Amazing Soup" problem. Students are asked to add and/or remove "cold cubes" and "hot cubes" to adjust the temperature of the soup and discover rules for subtracting integers in the process.