Algebra 1:

     variables on both sides:  https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:solve-equations-inequalities/x2f8bb11595b61c86:linear-equations-variables-both-sides/v/why-we-do-the-same-thing-to-both-sides-multi-step-equations

     CLT/Distributive Property:  https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:solve-equations-inequalities/x2f8bb11595b61c86:linear-equations-parentheses/v/solving-equations-with-the-distributive-property

     Types of Solutions:  https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:solve-equations-inequalities/x2f8bb11595b61c86:num-solutions-linear-equations/v/number-of-solutions-to-linear-equations

     Literal Equations: https://www.khanacademy.org/math/algebra-home/alg-basic-eq-ineq/alg-old-school-equations/v/solving-for-a-variable

     Slope:  https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:linear-equations-graphs/x2f8bb11595b61c86:slope/v/introduction-to-slope

     Linear Functions:  https://www.khanacademy.org/math/algebra-home/alg-linear-eq-func

     Writing Linear Functions:  https://www.khanacademy.org/math/algebra-home/alg-linear-eq-func/alg-writing-slope-intercept-equations/v/graphs-using-slope-intercept-form

                   https://www.khanacademy.org/math/algebra-home/alg-linear-eq-func/alg-point-slope/v/idea-behind-point-slope-form
     
     System of Equations:  https://www.khanacademy.org/math/algebra-home/alg-system-of-equations

     Radicals:  https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:rational-exponents-radicals#x2f8bb11595b61c86:simplifying-square-roots

  

Geometry Unit 1:
        Points, Lines and Planes: https://www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-intro-euclid/v/language-and-notation-of-basic-geometry

        Segment Addition:  https://www.khanacademy.org/math/algebra-basics/alg-basics-equations-and-geometry/equations-geometry/v/segment-addition

        Segment Construction (You Tube to you can see the process): https://www.youtube.com/watch?v=BDnoX4MiJtc

        Midpoint and Distance:  https://www.khanacademy.org/math/geometry/hs-geo-analytic-geometry/hs-geo-distance-and-midpoints/v/distance-formula

        Angels:  https://www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-angles/v/measuring-angles-in-degrees

        
Angle Constructions:  https://www.youtube.com/watch?v=AkvNo6PQsRs

        Angle Bisector:  https://www.youtube.com/watch?v=lIwvSzfUkOY

        Angle Relationships:  https://www.khanacademy.org/math/geometry-home/geometry-angles/geometry-vert-comp-supp/v/vertical-adjacent-and-linearly-paired-angles

         Transformations:  https://www.khanacademy.org/math/geometry/hs-geo-transformations
  
         Polygons:  https://www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-polygons/v/proof-sum-of-measures-of-angles-in-a-triangle-are-180

          Triangle Congruence:  https://www.khanacademy.org/math/geometry/hs-geo-congruence

          Similar Figures:  https://www.khanacademy.org/math/geometry/hs-geo-similarity