Content Standard: B. Computation:
Students will understand and demonstrate computation skills.
Common Assessment(s):

Performance Indicators Students will be able to:	Essential Elements (Specific grade level learning objectives)	Suggested Performance Activities	Suggested Classroom Assessments	Vocabulary
1. Use and apply estimation with quantities, measurements, computations, and problem-solving.	Develop skill in making sensible estimates.	For quantities: estimate how many of an item are in a jar. (see A1) For computation: Houghton-Mifflin Module 9, Sect. A, page 437; Math Their Way, chapters 7, 8, 9.  (See B2, B3) Discuss ideas of reasonable answers before activity.	Teacher observation	estimate
2. Use multiple strategies in solving problems involving addition and subtraction of whole numbers.	Problem solve using pictures, numbers, words	Houghton-Mifflin Module 9, Sect. A, page 437 Math Their Way: chapters 7, 8, 9.  (see B1, B3)	Cows and Chicks: After hearing a farm story, the children work in pairs to solve a given problem (e.g., number of legs on 2 cows and 3 chickens.)	add plus sum subtract minus
3. Show understanding of addition and subtraction by using a variety of materials, strategies, and symbols.	Addition and subtraction by using manipulatives, number lines, and drawings	Houghton-Mifflin Module 9, Sect. A, page 437 Math Their Way: chapters 7, 8, 9.  (see B2, B3)	Dandelion Days Exemplar (Spring 2000, page 71)	difference equal count on count back doubles