This reasoning strategy is commonly used in high performing countries and takes advantage of student's knowledge of combinations. Identify the equation that represents this strategy
a) 15 – 8, think 10 + 5 – 8, take from the 10: 10 – 8, add back on the 5 to get the answer.
b) 14 – 8, take away 4 to get to 10, then take away 4 more to get the answer.
c) 12 – 5, it takes 5 to get to 10 and 2 more to 12 and 5 + 2 = to get to the answer.
d) 7 + 6, 5 + 2 is seven and 6 is 5 + 1, add 5 + 5 and add the 2 and 1 to get the answer.
a
You might also like to view...
Reasoning enables students to draw logical conclusions, apply logical classification skills, explain their thinking, justify their problem solutions and processes, apply patterns and relationships to arrive at solutions, and make sense of mathematics and science
a. True b. False
The second step in the development of a group is:
A. Dissatisfaction or control B. Dependency C. Resolution or norming D. Inclusion or orientation
A researcher selects a sample of nine participants from a population with a mean of 8 and a standard deviation of 3. About 14% of the sample means in this sampling distribution should be between a sample mean of
A. 6 and 8. B. 5 and 6. C. 9 and 10. D. 10 and 11.
Principles for implementing play-centered assessments include:
a. ascertaining the child's viewpoint b. attending carefully to the child's behaviors and verbalizations c. reflecting whether a question will empower the child d. all of the above