Short, helpful video on ACT Science section by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side.
How we measure airspeed, wind, groundspeed, and other variables in navigation.
What is absolute value?
How to identify, define, and label rays and opposite rays.
How to find the slope if you're given 2 points.
How to write the equation of a line in point-slope form.
Comparing fractions using < or > and ordering them on the number line
Adding or subtracting decimals by vertically lining up the zeros
Graphing one variable inequalities on a number line
How to define a polygon, how to distinguish between concave and convex polygons, how to name polygons.
How to define an altitude and draw them on acute, right, and obtuse triangles.
How to identify the centroid and the way it divides each of the medians.
How to define alternate interior angles and their special properties.
How to define alternate exterior angles and their special properties.
How to describe same side interior and same side exterior angles and their special properties.
How to define and construct an angle bisector.
How to define the derivative of a function at a point x=a.