**Title:** From Knotty to Calculating

**Description:**
In this lesson, students will work within their math and English language arts classes to research the development of mathematical tools and their applications. A research paper will be produced for and graded by the English language arts teacher. A presentation will be made in the math class.
**Standard(s): **

[ELA2015] (11) 27: Draw evidence from literary or informational texts to support analysis, reflection, and research. [W.11-12.9]

**Subject:**English Language Arts (9 - 11), or Mathematics (9 - 12)

**Title:**From Knotty to Calculating

**Description:**In this lesson, students will work within their math and English language arts classes to research the development of mathematical tools and their applications. A research paper will be produced for and graded by the English language arts teacher. A presentation will be made in the math class.

**Title:** Slide Into the Past

**Description:**
Students will be introduced to the slide rule through A brief history on its use. They will practice simple calculations (multiplying and finding values of trigonometric, exponential, and logarithmic functions) using a virtual slide rule.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics (9 - 12)

**Title:**Slide Into the Past

**Description:**Students will be introduced to the slide rule through A brief history on its use. They will practice simple calculations (multiplying and finding values of trigonometric, exponential, and logarithmic functions) using a virtual slide rule.

**Title:** Napier's Bones - A Useful Calculation Tool

**Description:**
This lesson deals with John Napier's historical contributions to the field of mathematics. Focus is given to Napier's Bones or Rods. Students will create a set or will use an online interactive set to perform calculations involving multiplication of 2 and 3 digit numbers.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics (9 - 12)

**Title:**Napier's Bones - A Useful Calculation Tool

**Description:**This lesson deals with John Napier's historical contributions to the field of mathematics. Focus is given to Napier's Bones or Rods. Students will create a set or will use an online interactive set to perform calculations involving multiplication of 2 and 3 digit numbers.

**Title:** Reflect on This

**Description:**
In this lesson, from Illuminations, students investigate reflections in a plane using mirrors (or other reflective materials) and a geometry utility. They apply their findings to examination of interior angles of regular polygons.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**Reflect on This

**Description:**In this lesson, from Illuminations, students investigate reflections in a plane using mirrors (or other reflective materials) and a geometry utility. They apply their findings to examination of interior angles of regular polygons.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12

**Title:** Measuring Shadows

**Description:**
In this Science NetLinks lesson, students determine the pattern (length and direction) of shadows cast by sunlight during a several month period. They develop an interpretation of the daily and seasonal patterns and variations observed.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**Measuring Shadows

**Description:**In this Science NetLinks lesson, students determine the pattern (length and direction) of shadows cast by sunlight during a several month period. They develop an interpretation of the daily and seasonal patterns and variations observed.

**Thinkfinity Partner:**Science NetLinks

**Grade Span:**6,7,8

**Title:** Using a Calculator for Finding the Equation of a Function

**Description:**
To determine the function of best fit for a set of data, students should recognize which category of function bests fit the data and know how to use technology to obtain a function. Students will use linear regression to find the best function. This lesson teaches these skills and prepares students for the subsequent lesson(s), in which they will collect their own data.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**Using a Calculator for Finding the Equation of a Function

**Description:**To determine the function of best fit for a set of data, students should recognize which category of function bests fit the data and know how to use technology to obtain a function. Students will use linear regression to find the best function. This lesson teaches these skills and prepares students for the subsequent lesson(s), in which they will collect their own data.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12

**Title:** Hospital Locator

**Description:**
In this student interactive, from an Illuminations lesson, students act as community planners, trying to place a new medical center equidistant from three cities.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**Hospital Locator

**Description:**In this student interactive, from an Illuminations lesson, students act as community planners, trying to place a new medical center equidistant from three cities.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12

**Title:** IGD: Angle Bisector

**Description:**
This student interactive, from Illuminations, helps students understand and investigate angle bisectors. Students read a definition and then construct an angle bisector using the interactive tool. Finally, students take a closer look at the properties of angle bisectors by answering a set of questions and then checking their answers.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**IGD: Angle Bisector

**Description:**This student interactive, from Illuminations, helps students understand and investigate angle bisectors. Students read a definition and then construct an angle bisector using the interactive tool. Finally, students take a closer look at the properties of angle bisectors by answering a set of questions and then checking their answers.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12

**Title:** IGD: Euler Line

**Description:**
This student interactive, from Illuminations, helps students understand and investigate Euler lines. Students read a definition and then construct the Euler line of a triangle using the interactive tool. They learn that the Euler line involves three points associated with triangles: the circumcenter, orthocenter, and centroid.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**IGD: Euler Line

**Description:**This student interactive, from Illuminations, helps students understand and investigate Euler lines. Students read a definition and then construct the Euler line of a triangle using the interactive tool. They learn that the Euler line involves three points associated with triangles: the circumcenter, orthocenter, and centroid.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12

**Title:** IGD: Simson Line

**Description:**
This student interactive, from Illuminations, helps students understand and investigate a triangle s Simson line, which is the line passing through the feet of the perpendiculars dropped from P to the three sides of a triangle. Students construct the Simson line for a given triangle using the interactive applet.
**Standard(s): **

[MA2015] MI1 (9-12) 11: Describe the development of mathematical tools and their applications. (Alabama)

**Subject:**Mathematics

**Title:**IGD: Simson Line

**Description:**This student interactive, from Illuminations, helps students understand and investigate a triangle s Simson line, which is the line passing through the feet of the perpendiculars dropped from P to the three sides of a triangle. Students construct the Simson line for a given triangle using the interactive applet.

**Thinkfinity Partner:**Illuminations

**Grade Span:**9,10,11,12