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Excerpt from An Experimental Study to Determine the Relative Difficulty of the Elementary Number Combinations in Addition and MultiplicationNature of the tests. Directions for teachers Results (0) Addition (tables VII and VIII) 1. Discussion 2. Errors in process (table IX), with discussion.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction...

Excerpt from An Experimental Study to Determine the Relative Difficulty of the Elementary Number Combinations in Addition and Multiplication Psychological justification of the method of presenting the combinations, 1. The number concept, 2. Putting content into number and process symbols, 3. Objective demonstration of number facts and processes, 4. Memory and habit, 5. Association, judgment, &c, 6. Repetition and retention, 7. Extent of the a...