Monday, April 29, 2013
Where have all the problems gone...
Iremindedmyfaithfulthat, afterpostingnumeroustimesfor 2 months, Iwouldcrashandburn! ButIhopesomeofyouarefollowingmeattwitter.com/dmarain.
I have been tweeting many SAT practice problems under my trademark ®SATMATH 800++++.
For example, here's my latest...
Whatistheprobabilitythatanumberchosenatrandomfromthefirsttenpositiveoddintegersisprime?
[45 seconds...]
Here's another not yet tweeted...
In how many ways can 36 bewrittenasthesumof 2 primes, pandq, p ≤ q?
These are NOT of a high order of item difficulty. They are intended to provide practice for this category of arithmetic problems on SATs and other standardized tests, such as the upcoming PARCC assessments.
Justasimportantly, asinALLproblemsIcompose, theyareintendedtobeusedasdiscussionpointsinclasstoreviewfundamentalideasandhelpstudentsimprovetheirREADINGCOMPREHENSIONofmathwords/phrases.
AS ANY MATH EDUCATOR WILL READILY ACKNOWLEDGE:
LACK OF KNOWLEDGE OF KEY MATH TERMS AND LANGUAGE ISSUES IN GENERAL ARE MAJOR FACTORS IN STUDENTS NOT PERFORMING UP TO THEIR POTENTIAL.
Posted by Dave Marain at 7:37 AM 0 comments
Wednesday, April 17, 2013
INSCRIBING RECTANGLES IN AN EQUILATERAL TRIANGLE - A COMMON CORE INVESTIGATION
I'll let the video speak for itself...
I would really appreciate dialog here, focusing more on instructional methods -- balanced vs blended, conceptual development AND procedural understanding, etc.
Hope this helpful to someone...
If interested in purchasing my NEW 2012 Math Challenge Problem/Quiz book, click on BUY NOW at top of right sidebar. 175 problems divided into 35 quizzes with answers at back and DETAILED SOLUTIONS/STRATEGIES for the 1st 8 quizzes. Suitable for SAT I, Math I/II Subject Tests, Common Core Assessments, Math Contest practice and Daily/Weekly Problems of the Day. Includes multiple choice, case I/II/III type and constructed response items. Price is 9ドル.95. Secured pdf will be emailed when purchase is verified.
Posted by Dave Marain at 10:04 AM 3 comments