same base 61 videos

Area of Trapezoids
Geometry Area
How to derive the area of a trapezoid formula using the area of a rectangle.
trapezoid parallelogram base height 
Solving a System of Linear Equations in Two Variables
Algebra 2 Systems of Linear Equations
How to solve a system of linear equations in two variables.
solving a system in two variables substitution elimination intersection parallel same line 
Isosceles Triangles
Geometry Triangles
How to define isosceles triangles, their components and how to determine their properties.
vertex angle leg base base angle converse remote interior angles 
Buffered Solutions
Chemistry Acids and Bases
How acids and bases are used in buffered solutions.
buffer buffered solutions 
Trapezoid Midsegment Properties
Geometry Polygons
How to define the midsegment of a trapezoid, calculate its length, and relate it to a triangle midsegment.
midsegment trapezoid average bases midpoint 
Area of Parallelograms
Geometry Area
How to find the area of any parallelogram using rectangle area formulas.
area of rectangles base times height 
Salts
Chemistry Acids and Bases
How neutralization reactions produce salts.
salt acids bases neutralization reaction 
pH and pOH
Chemistry Acids and Bases
How pH and pOH represent the concentration.
pH pOH acid base concentration 
Equilibrium Systems
Chemistry Acids and Bases
Understanding equilibrium systems.
acid base conjugate equilibrium system 
Genetic Mutation
Biology Molecular Biology
Random errors in genes and their effects.
genetic mutation chromosomal base substitution 
Tangent Segments to a Circle
Geometry Circles
How to find the length of tangent segments drawn to a circle from the same point.
tangent congruent segments inscribed circle 
Isomers Stereoisomers
Chemistry Organic Chemistry
Understanding the variations in the structure and composition of individual molecules with the same chemical formula.
isomers stereoisomers structural isomer geometric isomer optical isomer 
Adding/Subtracting Fractions Like Denominators
PreAlgebra Fractions and MIxed Numbers
Adding and subtracting fractions that have the same denominator, including a visual representation

Triangle Midsegment Properties
Geometry Polygons
How to define a triangle midsegment and describe its special properties.
midsegment triangle parallel bases midpoint third side 
Space Diagonals
Geometry Pythagorean Theorem
How to define and calculate a space diagonal.
space diagonal vertex base lateral face 
Volume of Cones
Geometry Volume
How to compare the volume of a cone and a cylinder and how to calculate the volume of a cone given the radius and height.
volume base area height circle area 
Volume of Pyramids
Geometry Volume
How to find the volume of any pyramid.
volume base area height pyramid regular polygon