As posted on twitter.com/dmarain ...

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## Saturday, April 16, 2016

### Common Core Activity: Square in Right Triangle - One More Variation!

Posted by Dave Marain at 9:41 AM 0 comments Links to this post

## Wednesday, April 13, 2016

### AN UNCOMMON? CORE GEOMETRY ACTIVITY

As posted on twitter.com/dmarain@gmail...

Feel free to Comment or email me using the Blogger Contact Form.

Posted by Dave Marain at 4:45 PM 0 comments Links to this post

## Tuesday, April 12, 2016

### COMMON CORE ALGEBRA/GEOMETRY INVESTIGATION

Also posted on twitter.com/dmarain

Let me know how you use/modify this activity for your Algebra and Geometry students! Feel free to comment or send email via Blogger Contact Form in sidebar.

Posted by Dave Marain at 10:18 AM 0 comments Links to this post

## Sunday, October 4, 2015

## Wednesday, August 26, 2015

### Common Core Desmos Activity for Algebra 2 and beyond

Click on graph to see the activity!

Set viewing window: -5<=x<=5

Also, it's better to manually animate the tangent lines by dragging the point or the slider!

Just a simple demo of the power of Desmos to build interactive Investigations for our math students.

Posted by Dave Marain at 3:41 PM 0 comments Links to this post

## Thursday, July 30, 2015

### Balanced Learning is not Blended or Flipped

***BALANCING*** PROCEDURAL LEARNING and CONCEPTUAL UNDERSTANDING.

Oh, Dave, you're so 90s, 80s,70s,... You just don't get it, Dave....

Posted by Dave Marain at 7:53 PM 0 comments Links to this post

## Tuesday, July 28, 2015

### Modeling - What Algebra Looks Like on the New SAT/PSAT and the Common Core

P(t)=M-k(t-20)², 0≤t≤20.

Initial population:356

Max pop'n:500

Estimated population after 10 yrs?

Answer: 464

Should some background be developed BEFORE exploring with technology or AFTER or something in between?

Posted by Dave Marain at 9:20 PM 0 comments Links to this post

## Saturday, July 25, 2015

### 37 not 42 the Answer to The Meaning of Life? A Common Core Investigation

37x13=481

37x22=814

37x14=518

37x23=851

1/27=0.037037...

Posted by Dave Marain at 6:31 AM 0 comments Links to this post