word problem 81 videos

Comma Rules
Grammar Sentence Problems
The rules for placing commas in sentences.
sentence problems comma rules 
Parallel Structure
Grammar Sentence Problems
How to form sentences with parallel structure.
sentence problems parallel structure 
Sentence Fragment
Grammar Sentence Problems
Identify and revise sentence fragments.
sentence problems sentence fragment 
Comma Splices
Grammar Sentence Problems
How to identify unnecessary commas.
sentence problems comma splices 
Percent Concentrations
Algebra Word Problems Using Systems of Equations
How to solve word problems about mixing two liquids with different percent concentrations.
percent concentration mixture 
Selling Multiple Items
Algebra Word Problems Using Systems of Equations
How to set up a system of equations to represent word problems where someone is selling multiple items.
system of equations coefficient elimination 

Postulate, Axiom, Conjecture
Geometry Geometry Building Blocks
How to differentiate between the words postulate, axiom, and conjecture.
postulate axiom conjecture 
Locus and Definition of a Circle and Sphere
Geometry Circles
How to define a circle and a sphere using the word locus.
locus set of points distance plane circle sphere given 
Applied Linear Equations: Consecutive Numbers
Precalculus Linear Equations and Inequalities
How to solve a problem involving consecutive integers.
consecutive numbers 
Heat of Formation
Chemistry Thermochemistry
How to use heat of formation in thermochemical problems.
heat of formation enthalpy hermochemical equation 
Buoyancy
Physics Solids, Liquids and Gases
Problems to aid in the understanding of buoyant force and Archimedes' Principle.
buoyancy buoyant force archimedes principle 
Physics Siphoning  Torricellis Law
Physics Solids, Liquids and Gases
How to solve siphoning problems using Torricellis Law.
siphons siphoning torricelli law 
Carbon Dating
Physics Nuclear Physics
How to solve problems using carbon dating.
carbon dating carbon 14 
Planck's Constant
Physics The Atom and Quantum Physics
Understanding and solving problems using Planck's constant.
blackbody radiation thermal contact thermal equilibrium 
Percents
Algebra PreAlgebra
How to set up percent problems as proportions.
percent cross multiply proportion