GeoGebra 数学范例：购买肥料和 mulch 的优惠券计算

GeoGebra 命令及参数

1. LaTeX(steps) → counter
2. LaTeX("\text{Use the buttons below to return to the original problem or}\cr\text{randomly generate a similar practice problem.}") → RandomizationText
3. Corner(1) → A
4. Corner(3) → B
5. LaTeX("\text{Identify the term(s) in the expression.}") → text6
6. LaTeX("\text{Identify the coefficient(s) in the expression. }") → text8
7. LaTeX("\text{Move the slider to solve the problem.}") → text0
8. LaTeX((((("\text{Mulch is represented by the variable }\textcolor{#000099}{m}\text{, and Rhett bought }\textcolor{#000099}{" * mulch) * "}\text{ sacks of mulch.}\cr\text{The term representing the number of sacks of mulch he purchased is }\textcolor{#000099}{") * mulch) * "m}.")) → text3
9. LaTeX((((((("\text{Combining the terms, the expression that represents Rhett’s purchase is \textcolor{#000099}{" * fertilizer) * "f+") * mulch) * "m –") * discount) * "}.")) → text5
10. LaTeX((((((((((((("\text{The expression representing Rhett’s purchase is }\textcolor{#000099}{" * fertilizer) * "f + ") * mulch) * "m – ") * discount) * "}\text{. Terms can be a number,}\cr\text{a variable, or the product of a number and variable(s). }\cr\text{The terms are }\textcolor{#000099}{") * fertilizer) * "f}\text{, }\textcolor{#000099}{") * mulch) * "m}\text{, and }\textcolor{#000099}{–") * discount) * "}.")) → text7
11. LaTeX((((((((((("\text{A coefficient is a number multiplied by a variable in an algebraic expression. }\cr\text{In the expression }\textcolor{#000099}{" * fertilizer) * "f + ") * mulch) * "m – ") * discount) * "}\text{, the coefficients are }\textcolor{#000099}{") * fertilizer) * "}\text{ and }\textcolor{#000099}{") * mulch) * "}.")) → text9
12. LaTeX("\text{Identify the constant(s) in the expression, if any.}") → text10
13. LaTeX((((((((("\text{A constant is a quantity that does not change. }\cr\text{In the expression }\textcolor{#000099}{" * fertilizer) * "f + ") * mulch) * "m – ") * discount) * "}\text{, the constant is }\textcolor{#000099}{–") * discount) * "}.")) → text11
14. LaTeX((((((("\textcolor{#000099}{" * fertilizer) * "}\text{ sacks of fertilizer; }\textcolor{#000099}{") * mulch) * "}\text{ sacks of mulch; a discount of }\textcolor{#000099}{") * discount) * "}\text{ dollars}")) → Problem
15. LaTeX((((("\text{Rhett had a coupon for }\textcolor{#000099}{" * discount) * "}\text{ dollars off his total purchase. The coupon represents a discount,}\cr\text{or subtraction, from the amount he has to pay. This can be represented by }\textcolor{#000099}{–") * discount) * "}.")) → text4