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4434Connect the Neurons!
http://www.merlot.org/merlot/viewMaterial.htm?id=1047265
Neurons transfer information by releasing neurotransmitters across the synapse or space between neurons.Students model the chemical communication between pre-synaptic and post-synaptic neurons by transferring cotton-ball neurotransmitters between human neurons.Claiming Education Credits for the American Opportunity Credit
http://www.merlot.org/merlot/viewMaterial.htm?id=1045334
In Simulation 10A, you will take on the role of Jon Stillman in order to learn how to claim the American Opportunity Credit. The simulation is interactive and requires the user to answer questions and compute amounts to be entered on Form 1040A. The mirror site url links to the entire list of 20 simulations available from the IRS. Module 10 provides background information and tutorials to support this simulation (http://apps.irs.gov/app/understandingTaxes/student/hows_mod10.jsp)Claiming Education Credits for the Lifetime Learning Credit
http://www.merlot.org/merlot/viewMaterial.htm?id=1045337
In this simulation, you will take on the role of Judy Hood in order to learn how to claim the Lifetime Learning Credit using Form 8863. This simulation is #10B of 20 available from the IRS.Using Form 1099-INT to Complete Schedule C-EZ, Schedule SE, and Form 1040
http://www.merlot.org/merlot/viewMaterial.htm?id=1045366
In Simulation 14A, you will take on the role of Rita A. Bentley in order to learn how to claim self-employment income. The learning object consists of 20 slides that at times require the users to enter data. Simulation 14A is number 19 of the 20 simulations accessed via the mirror url. Background information can be found by clicking on How's and Why's of Taxes and selecting Module 14.Touch decimals Place value ±
http://www.merlot.org/merlot/viewMaterial.htm?id=1041297
Touch decimals:Double interactive place value chart, with up to 40 decimal columns.Mathematical analogy with positive and negative tokens.Designed to: - Show and experience the addition and addition with carry.- Show and experience the subtraction and subtraction with borrowing.- Zero as "nothing" in a place value place, or as an undetermined number of negative-positive pairs of particles with sign.MAIN ELEMENTS:Two charts. Each chart with a variable number of places.In the places, a variable number of tokens with positive or negative valueTOKENS:The life of tokens:A token can be positive or negative.A positive token is born with the tap of a finger on the screenA pair of positive-negative tokens is born with a tap of two fingers on the screenA token disappears if it crosses the top or bottom border.The behavior of tokens:Positive and negative tokens have the same behavior:A token can cross at will the intermediate horizontal borderWhen a token crosses the border on the right, it becomes 10 tokens.A token need 9 companions from the old place to cross the border to the left.Positive and negative tokens may be in the same place. But if two tokens of different signs meet, they cancel each other.PLACES:A place is a rectangle.A place can contain tokens of the same or different sign.A rectangle has 4 borders.The upper and the lower borders can be the external border or the intermediate border.Tokens can cross freely the intermediate border.If a token cross the external border, disappears. To get the permission to cross left borders, a token needs 9 companions of the same sign.A token recovers 9 companions if cross the right borders.GENERAL:Chart:A chart is the horizontal row of places.There are two charts: The upper chart and the lower chart.There is a button in each chart to change the sign of all its tokens.Control:In the 'settings' option, there is an option to erase all tokens of each chart, or to erase all tokens and refresh all to start again from scratch.* * * * * * *Touch decimals Place value ±The behavior of places and tokens of this app describes the behavior of the numbers in the decimal system. Courses:Math 1, 2, 3, 4 Number sense: Place value.Math 5, 6, 7 Number sense: Base Ten:*** COMMON CORE State standards initiative: **Grade 1:Understand place value: CCSS.MATH.CONTENT.1.NBT.B.2Use place value understanding and properties of operations to add and subtract: CCSS.MATH.CONTENT.1.NBT.C.4; CCSS.MATH.CONTENT.1.NBT.C.5; CCSS.MATH.CONTENT.1.NBT.C.6** Grade 2:Understand place value:CCSS.MATH.CONTENT.2.NBT.A.1Use place value understanding and properties of operations to add and subtract:CCSS.MATH.CONTENT.2.NBT.B.5; CCSS.MATH.CONTENT.2.NBT.B.6; CCSS.MATH.CONTENT.2.NBT.B.7; CCSS.MATH.CONTENT.2.NBT.B.9** Grade 3:Use place value understanding and properties of operations to perform multi-digit arithmetic.CCSS.MATH.CONTENT.3.NBT.A.2; CCSS.MATH.CONTENT.3.NBT.A.3** Grade 4:CCSS.MATH.CONTENT.4.NBT.B.4; Graph.tk
http://www.merlot.org/merlot/viewMaterial.htm?id=1039751
Graph.tk is an online and open-source graphing utility.It's very easy to use. Use the "+" button to create a new equation. Use "/" for fractions, "^" for exponentials, and "*" for multiplication. No install necessary. Runs straight from within the browser using the new HTML5 features. But it can still save all the graphs, and it still works when you're not even connected to the net! You will just need to have a good modern browser (Firefox 4+, Google Chrome 14+, Internet Explorer 9+, Opera 11.60+, Safari 5+).Scientific Calculator
http://www.merlot.org/merlot/viewMaterial.htm?id=1039762
Scientific Calulator is a powerful, programmable, scientific calculator.Some of its features include: Supports variables, constants, and custom functions; Save scripts online so you can access them anywhere or in a local library; Complex numbers, arbitrary precision integers, and exact fractions; Algebraic pretty-printed display; Full functional programming language; Supports matrix and vector operations; Calculation history lets you refer to previous results.Fishing Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=1037845
Students randomly sample fish from a lake and record the length of each fish. Students then use Excel to compute measures of central tendency and dispersion. Used for an activity on the computation of descriptive statistics. This applet was developed as part of a first course on biostatistics. It is used as part of a series of online lab activties for that course.Pollen Collection Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=1037868
Students collect air samples and record the number of pollen grains per sample. Students then use Excel to fit a Poisson distribution to these data. Used for an activity on discrete probability distributions. This applet was developed as part of a first course on biostatistics. It is used as part of a series of online lab activties for that course.Tree Trunk Applet
http://www.merlot.org/merlot/viewMaterial.htm?id=1037873
Students randomly sample trees in a forest and record the tree trunk circumferences. Students then use Excel to fit a normal distribution to these data. Used for an activity on continuous probability distributions. This applet was developed as part of a first course on biostatistics. It is used as part of a series of online lab activties for that course.