Hot Topics

# Math

### Geometry builds a new house, even in a tree

Math and CTE students in IL and Texas are using geometry to build houses—some for living in, some for climbing in, as in tree houses.

### ACT math practice: business sales algebra

Given a few facts about the total sales at a business over 3 years, can you find the basis sales figures using algebraic manipulation?

### PARCC 8th-grade math: infinite solution set

On the PARCC 8th grade math test, students will be required to analyze systems of equations and determine if there are no, 1, or infinitely many solutions.

### Boys or girls, we get good at what we practice

We can deny it, but test after test (whether valid or not) shows boys score well in higher math and girls in elementary reading. What to do?

### Stats can link higher ed access, voting patterns

Unemployment rates and access to a university education can influence the way certain areas vote, one study about Brexit has shown.

### For early math, let kids count on their fingers

Should kids be taught to count on their fingers when figuring out simple arithmetic? New research suggests the pedagogical tool may be good after all.

### Hillcrest applies quadratic equation to bottle rockets

Students at a suburban IL high school calculated how high launches took their bottle rockets during an outdoor class earlier this month.

### Algebra 1 PARCC: graphing inequalities

Graphing the solution to a system of linear inequalities is likely to come up on the PARCC test in algebra 1. Are you ready?

### Algebra 1 PARCC: home price stats

Measures of central tendency and the spread of data, including outliers, will come into play as students take the PARCC test in algebra 1 this spring.

### Math models can predict dropout rates

As the number of classes students fail goes up, so do the chances they’ll drop out, a new mathematical modeling approach has found.