Get-Flashcard.ps1
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function Get-Flashcard { <# .Synopsis Gets flashcards .Description Generates flashcards for a given grade level #> param( # The grade level for the flashcard #|Default 3rd [Parameter(Mandatory=$true,Position=0, ValueFromPipeline=$true)] [ValidateSet("1st", "2nd", "3rd", "4th", "5th", "6th", "7th")] [string] $GradeLevel ) process { $TheFlashcard = @{ Operator = $null FirstNumber = $null SecondNumber = $null Answer = $null Question = $null Maximum = 10 DecimalPlaces = 0 GradeLevel = $GradeLevel } if ($GradeLevel -eq "1st") { $TheFlashcard.Operator = "+" | Get-Random $TheFlashcard.Maximum = 10 $TheFlashcard.DecimalPlaces = 0 } elseif ($GradeLevel -eq "2nd") { $TheFlashcard.Operator = "+", "-" | Get-Random $TheFlashcard.OperatorChoices = "+", "-" $TheFlashcard.Maximum = 25 $TheFlashcard.DecimalPlaces = 0 } elseif ($GradeLevel -eq "3rd") { $TheFlashcard.Operator = "+", "-", "*" | Get-Random $TheFlashcard.OperatorChoices = "+", "-", "*" $TheFlashcard.Maximum = 50 $TheFlashcard.DecimalPlaces = 0 } elseif ($GradeLevel -eq "4th") { $TheFlashcard.Operator = "+", "-", "*", '/' | Get-Random $TheFlashcard.OperatorChoices = "+", "-", "*", "/" $TheFlashcard.Maximum = 100 $TheFlashcard.DecimalPlaces = 0 } elseif ($GradeLevel -eq "5th") { $TheFlashcard.Operator = "+", "-", "*", '/' | Get-Random $TheFlashcard.OperatorChoices = "+", "-", "*", "/" $TheFlashcard.WholeNumbersOnly = $false $TheFlashcard.Maximum = 300 $TheFlashcard.DecimalPlaces = 1 } elseif ($GradeLevel -eq "6th") { $TheFlashcard.Operator = "+", "-", "*", '/' | Get-Random $TheFlashcard.OperatorChoices = "+", "-", "*", "/" $TheFlashcard.WholeNumbersOnly = $false $TheFlashcard.Maximum = 1000 $TheFlashcard.DecimalPlaces = 2 } elseif ($GradeLevel -eq "7th") { $TheFlashcard.Operator = "+", "-", "*", '/' | Get-Random $TheFlashcard.OperatorChoices = "+", "-", "*", "/" $TheFlashcard.WholeNumbersOnly = $false $TheFlashcard.Maximum = 5000 $TheFlashcard.DecimalPlaces = 2 } $haveAnAnswer = $false do { $multiplyBy = if ($TheFlashcard.DecimalPlaces) { [Math]::Pow(10, $TheFlashcard.DecimalPlaces) } else { 1 } $TheFlashcard.FirstNumber = [Math]::Round(((Get-Random -Maximum ($TheFlashcard.Maximum * $multiplyBy))) / $multiplyBy, $TheFlashcard.DecimalPlaces) $TheFlashcard.SecondNumber = [Math]::Round(((Get-Random -Minimum 1 -Maximum ($TheFlashcard.Maximum * $multiplyBy))) / $multiplyBy, $TheFlashcard.DecimalPlaces) $script = [ScriptBlock]::Create("$($TheFlashcard.FirstNumber) $($TheFlashcard.Operator) $($TheFlashcard.SecondNumber)") Write-Verbose "$script" $theAnswer = Invoke-Arithmetic -Arithmetic $script $haveAnAnswer = $true if (! $TheFlashcard.DecimalPlaces) { if ([Math]::Round($theAnswer, $TheFlashcard.DecimalPlaces) -ne $theAnswer) { $haveAnAnswer = $false } } } while (-not $haveAnAnswer ) Write-Verbose "Answer Found" # If DropItem is 1, drop the operator # If DropItem is 2, drop the first number # If DropItem is 3, drop the second number # If DropItem is 4, drop the answer if ("1st", "5th", "6th", "7th" -notcontains $GradeLevel) { # First grade only drops one part of the question $dropItem = Get-Random -Minimum 2 -Maximum 4 } else { # All other grades can drop any item $dropItem = Get-Random -Minimum 1 -Maximum 4 } $wordQuestion = $false if ("3rd", "4th", "5th", "6th", "7th" -contains $GradeLevel) { $wordQuestion = ([Math]::Round((Get-Random -Maximum 10)/10)) -as [Bool] } $friendlyOperatorName = { param($op) if ($op -eq '+') { 'plus', 'and' } elseif ($op -eq '-') { 'minus' } elseif ($op -eq '/') { 'divided by', 'into' } elseif ($op -eq '*') { 'multiplied by', 'times' } } if ($wordQuestion) { $friendly = & $friendlyOperatorName $theFlashCard.Operator | Get-Random if ($dropItem -eq 1) { $question = "$($TheFlashcard.FirstNumber) __ $($TheFlashcard.SecondNumber) is $TheAnswer" $answer = $theFlashCard.Operator } elseif ($dropItem -eq 2) { $question = "__ $friendly $($TheFlashcard.SecondNumber) is $TheAnswer" $answer = $theFlashCard.FirstNumber } elseif ($dropItem -eq 3) { $question = "$($TheFlashcard.FirstNumber) $friendly __ = $TheAnswer" $answer = $theFlashCard.SecondNumber } elseif ($dropItem -eq 4) { $question = "$($TheFlashcard.FirstNumber) $friendly $($TheFlashcard.SecondNumber) = __" $answer = $theAnswer } } else { if ($dropItem -eq 1) { $question = "$($TheFlashcard.FirstNumber) __ $($TheFlashcard.SecondNumber) = $TheAnswer" $answer = $theFlashCard.Operator } elseif ($dropItem -eq 2) { $question = "__ $($theFlashcard.Operator) $($TheFlashcard.SecondNumber) = $TheAnswer" $answer = $theFlashCard.FirstNumber } elseif ($dropItem -eq 3) { $question = "$($TheFlashcard.FirstNumber) $($theFlashcard.Operator) __ = $TheAnswer" $answer = $theFlashCard.SecondNumber } elseif ($dropItem -eq 4) { $question = "$($TheFlashcard.FirstNumber) $($theFlashcard.Operator) $($TheFlashcard.SecondNumber) = __" $answer = $theAnswer } } $theFlashCard = New-Object PSObject -property $TheFlashcard $theFlashCard = $theFlashCard | Add-Member NoteProperty Question $question -Force -PassThru | Add-Member NoteProperty Answer $answer -Force -PassThru $TheFlashcard.pstypenames.clear() $TheFlashcard.pstypenames.add('formulaic.flashcard') $TheFlashcard } } |