MAFS.K.MD.2.3: Classify objects into given categories; count the numbers of objects in each category and sort the categories by count.
Cognitive Complexity Level: 1-Recall
[divider] [/divider] Students are able to…
- Sort objects by how they are alike or different based on a rule
- Count and compare the number of items in each set
- Sort objects by a rule that they have identified
- Describe how their collections have been sorted
- Determine a rule for a previously sorted set of objects
[divider] [/divider] Students are able to…because teachers:
- Keep sorting activities limited to ten or fewer objects in each group
- Facilitate discussion to help students think about and create labels for each set of items
- Provide numerous activities for students to sort objects
- Integrate previous and upcoming math content into this standard
[divider] [/divider] Questions to ask students:
- What were you thinking about when you sorted the blocks?
- How are these objects the same? Different?
- Are the objects the same color, size, or shape?
- What could we call the group: blue objects, round objects, small objects?
- Which set has the greatest amount of objects? Least amount of objects?
- How do you know you have more red objects than blue objects?
- What rule did your partner use to sort their objects?
- Can you sort these objects a new way?
[divider] [/divider] Additional Resources:
Additional in depth content knowledge
[divider] [/divider] Sample Formative Assessment Tasks:
[divider] [/divider] Resources/Tasks to Support Your Child at Home:
- Provide a set of household objects and ask your child to sort the objects into 2 (or more) groups. Guess which attribute your child used to sort the objects. Switch roles. Have your child guess how you sorted the objects.
- http://goo.gl/NF3ATo This interactive site allows your child to select the attribute to sort by and then has them use a Venn diagram to sort. Once they’ve sorted their shapes by attribute, have them count and compare the number in each set.
- Abcya Game: Same and Different
- Abcya Game: Counting, Sorting, and Comparing