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Multicolumn Addition with Carryover : ACT-R Model
(clear-all)
(define-model tutor-model
(sgp :esc t :lf .05 :trace-detail high)
;; Add Chunk-types here
(chunk-type addition-fact addend1 addend2 sum)
(chunk-type add-pair one1 ten1 one2 ten2 ten-ans one-ans carry)
;; Add Chunks here
(add-dm
(fact17 isa addition-fact addend1 1 addend2 7 sum 8)
(fact34 isa addition-fact addend1 3 addend2 4 sum 7)
(fact67 isa addition-fact addend1 6 addend2 7 sum 13)
(fact103 isa addition-fact addend1 10 addend2 3 sum 13)
(goal isa add-pair ten1 3 one1 6 ten2 4 one2 7))
;; Add productions here
(p start-pair
=goal>
ISA add-pair
one1 =num1
one2 =num2
one-ans nil
==>
=goal>
one-ans busy
+retrieval>
ISA addition-fact
addend1 =num1
addend2 =num2)
(p add-ones
=goal>
ISA add-pair
one-ans busy
one1 =num1
one2 =num2
=retrieval>
ISA addition-fact
addend1 =num1
addend2 =num2
sum =sum
==>
=goal>
one-ans =sum
carry busy
+retrieval>
ISA addition-fact
addend1 10
sum =sum)
(p process-carry
=goal>
ISA add-pair
ten1 =num1
ten2 =num2
carry busy
one-ans =ones
=retrieval>
ISA addition-fact
addend1 10
sum =ones
addend2 =remainder
==>
=goal>
carry 1
ten-ans busy
one-ans =remainder
+retrieval>
ISA addition-fact
addend1 =num1
addend2 =num2)
(p no-carry
=goal>
ISA add-pair
ten1 =num1
ten2 =num2
one-ans =ones
carry busy
?retrieval>
buffer failure
==>
=goal>
carry nil
ten-ans busy
+retrieval>
ISA addition-fact
addend1 =num1
addend2 =num2)
(p add-tens-done
=goal>
ISA add-pair
ten-ans busy
carry nil
=retrieval>
ISA addition-fact
sum =sum
==>
=goal>
ten-ans =sum)
(p add-tens-carry
=goal>
ISA add-pair
carry 1
ten-ans busy
=retrieval>
ISA addition-fact
sum =sum
==>
=goal>
carry nil
+retrieval>
ISA addition-fact
addend1 1
addend2 =sum)
(goal-focus goal)
)
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