However, Instant Interactive Drills is compatible with all versions of Mac OS X, as well as Mac OS 8.6-9.x. Version 2.0 has expanded the number of math problems.

So, how might teachers do this? Provide opportunities for students to model math facts with counters, number lines, and area grids. Pose investigations to explore the patterns in math facts.

Taiwan reported that China flew a record 111 warplanes across a US-drawn boundary in the strait separating the sides, underscoring the intensity of military pressure Beijing is placing on the ...

Forty-two fighter jets crossed the median line as China began drills around Taiwan in anger at President Tsai Ing-wen's meeting with US House Speaker Kevin McCarthy.

Seventy-one Chinese military aircraft crossed the sensitive median line of the Taiwan Strait on Saturday as China began drills around Taiwan in anger at President Tsai Ing-wen's meeting with the ...