Purple Math
Purplemath: Solving Quadratic Inequalities: Concepts
Introduces a conceptual basis for solving quadratic inequalities, looking at linear inequalities and using a knowledge of what quadratic graphs look like.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Place Value and Problem Solving With Units of Measure
A guide to support parents as they work with their students in place value and problem solving with units of measure.
Purple Math
Purplemath: Solving Rational Inequalities
Demonstrates the factor-table method for solving rational inequalities.
Purple Math
Purplemath: Solving Simple (To Medium Hard) Trig Equations
Introduces techniques for solving trigonometric equations. Provides worked examples of solving some simpler to medium-hard equations.
Open Curriculum
Open Curriculum: Interval
To explain the concept of intervals and how to distinguish and classify the various intervals
Other
Ear Training Institute: Ear Power
Download this software and set up drills on your own level for melodic and harmonic intervals. Learn to recognize and build chords. There is a small cost for the full version (click on "Complete Package") and with a microphone, the...
Other
Intervals Forwards and Backwards
This column explains the importance of knowing your intervals both forwards and backwards. It also provides advice on how to use intervals in your musical performances.