Which of the following are considered key elements of high-quality STEM instruction? Select all that apply.

Justin decided to build a fenced dog run for his dog. A picture of his fenced dog run is shown. What is the perimeter of his fenced dog run? Justin’s dog run is  _______ feet in perimeter.    

As students move to thinking about formulas they need to develop conceptual knowledge of how the perimeter of rectangles can be put into general form. What formula below displays a common student error for finding the perimeter?

Please match what is means to engage in mathematics and what it means to engage in statistics:

Justin decided to build a fenced dog run for his dog. A picture of his fenced dog run is shown. What is the area of his fenced dog run? Justin’s dog run is  _______ square feet.  

All cones are pyramids. 

Please match each Van Hiele level characteristic to its description.

MULTIPLE ANSWER: Assume current gain β=100 and VBE=0.7V, calculate the collector current Ic and then VCE voltage. Choose the values closest to what you found. problem.jpg

Determine the AC load line equation for the amplifier given below. Take early Voltage VA=50, IC=0.56mA (no need to do DC analysis). Assume β=120 and VBEon=0.7V    dc-load-line.jpg

In some cats, the gene responsible for white coat color also affects eye development and hearing. For example, white cats with blue eyes often have a higher chance of being deaf. This is an example of a single gene influencing multiple traits. What type of gene is this?