139.3. Variable value
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Variable value
Solve tasks to find hidden Geo point coordinates
- Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
- Algebra: Similar polynomials.
- Algebra: Quadrant
- Algebra: Concept of equation.
- Algebra: Quadrant
- Algebra: Equivalent equations.
- Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
- Algebra: Numerical expression.
- Algebra: Equation properties.
- Algebra: Equation roots.
- Algebra: Function y = x²
- Algebra: Trinomial.
- Algebra: Numerical equalities.
- Algebra: Mutually equal monomials
- Algebra: Identical expression transformation.
- Algebra: Coordinate beginning point
- Algebra: Coordinate axis and point coordinate
- Algebra: Variable value
- Geometry: Opposite, adjacent angles, perpendiculars against a straight line.
- Algebra: Function
- Algebra: Equivalent equations.
- Algebra: Linear inequality solution
- Algebra: Conditioned inequality properties.
- Algebra: Function expression with formula, table, diagram
- Algebra: Numerical normal form
- Algebra: Numerical module
- Algebra: Subscript concept: base, index, degree
- Geometry: Point, straight line, plane, geometric figure
- Algebra: Numerical equalities.
- Geometry: Opposite, adjacent angles, perpendiculars against a straight line.
- Algebra: Linear inequality solution
- Algebra: Equivalent inequalities
- Algebra: Abscissa axis
- Geometry: Broken line and elements, elementary broken line, closed broken line, broken lines length, polygon, angles, edges peaks, diagonal, polygon perimeter.
- Algebra: Conditioned inequality properties.
- Geometry: Three point mutual arrangement.
- Geometry: Equal triangles, appropriate elementrs, similar properties and signs.
- Algebra: Monomial normal form
- Algebra: Monomial coefficient
- Algebra: Conditioned inequality properties
- Algebra: Numerical module
- Algebra: Linear equations ax + b = 0, where a, b ∈ Q