“Many problems that appear in later numeracy can be traced back to a lack of understanding of place value. It therefore needs careful attention, particularly when zeros are involved.” – Chinn & Ashcroft, Mathematics for Dyslexics Place value may be covered quite quickly in a student’s first math lessons, but for the dyslexic student, who likely will have trouble with multi-stepped procedures and working memory overload, the problem will spread beyond borrowing and regrouping, into multiplication, decimals, and algebra. At left, from Diane Montgomery’s Teaching Gifted Children with Special Educational Needs, see examples of systematic place value errors. 83 +49 1212 #1: Carry-over mistake in addition. 46 -39 13 #2. Borrowing – Regrouping error in subtraction. 43 x 5 = 205 #3. Carryover mistake in […]
The Beauty of Guessing
I've been away from the blog a bit because we're finishing articles for our Premium magazine this month and I've been buried in articles about visual spatial learning and preferred learning strategies of boys. Now I know that it's pretty common for the practice of...
Count on Your Fingers – It Helps with Math
The researchers found that when 8-to-13-year-olds were given complex subtraction problems, the somatosensory finger area lit up, even though the students did not use their fingers. This finger-representation area was, according to their study, also engaged to a...