Timeline for Children's progression from counting to addition
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Nov 4, 2015 at 17:35 | comment | added | DesignerAnalyst | @Seanny123 there is no direct reference, but I have added the relevant chapter references. | |
| Nov 4, 2015 at 17:34 | history | edited | DesignerAnalyst | CC BY-SA 3.0 |
added 532 characters in body
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| Nov 4, 2015 at 17:20 | comment | added | Seanny123 | Great reference! Where does Markman get the evidence for this. Is there a study in particular that he cites? | |
| Nov 4, 2015 at 17:18 | history | answered | DesignerAnalyst | CC BY-SA 3.0 |