Reasoning Flashcards
Counting on
starting on one number and counting until reaching the second number; a typical technique is saying the counting numbers out loud while using fingers to keep track of how many numbers have been used
Example: 30 plus 5: 30, 31, 32, 33, 34, 35
(at 30, zero fingers would be held out and at 35, 5 fingers)
Number line
a straight line where each number is equal distance from the next one
Area models
Using the expanded form of a number, each number is multiplied together and the products are added to find the final answer
Example.
This area model shows 42 × 37
Expanded form/ Expanded notation
break apart each digit in the number and show the digits true value
Example: 4,358→4000+300+50+8
Rectangular arrays
dots or objects that show the end product of 2 numbers; the objects are arranged so there are an equal number of items in each row and column
Example: These rectangular array show 4 × 3
Metacognition
the awareness and understanding of one’s own thought processes, enabling students to monitor, control, and reflect on their learning strategies and problem-solving techniques to enhance their cognitive abilities