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$32.95 $20.89
$35.00
$32.00
$29.00
$26.00
$23.00
Apr
Jun
Aug
Oct
Dec
Feb
Apr
Jun
2015
2016
$31.30, Feb 4 - Feb 5 $25.70, Feb 4 - Feb 11 $25.00, Feb 4 - Apr 10 $28.26, Feb 7 - Feb 11 $25.70, Feb 4 - Feb 11 $25.00, Feb 4 - Apr 10 $28.54, Feb 13 - Feb 18 $25.74, Feb 13 1:33 pm $25.00, Feb 4 - Apr 10 $28.54, Feb 13 - Feb 18 $25.70, Feb 14 - Mar 9 $25.00, Feb 4 - Apr 10 $27.97, Feb 20 - Mar 24 $25.70, Feb 14 - Mar 9 $25.00, Feb 4 - Apr 10 $27.97, Feb 20 - Mar 24 $25.00, Feb 4 - Apr 10 $23.42, Mar 11 - Mar 18 $27.97, Feb 20 - Mar 24 $26.18, Mar 20 4:08 pm $25.00, Feb 4 - Apr 10 $27.97, Feb 20 - Mar 24 $25.98, Mar 21 6:45 pm $25.00, Feb 4 - Apr 10 $27.97, Feb 20 - Mar 24 $25.00, Feb 4 - Apr 10 $23.42, Mar 24 2:00 am $29.89, Mar 26 8:36 am $25.30, Mar 26 8:36 am $25.00, Feb 4 - Apr 10 $30.14, Mar 28 - Apr 10 $25.55, Mar 28 - Mar 31 $25.00, Feb 4 - Apr 10 $30.14, Mar 28 - Apr 10 $25.00, Feb 4 - Apr 10 $24.62, Apr 2 3:41 pm $30.14, Mar 28 - Apr 10 $25.55, Apr 5 6:24 am $25.00, Feb 4 - Apr 10 $30.14, Mar 28 - Apr 10 $25.00, Feb 4 - Apr 10 $24.62, Apr 7 10:01 pm $30.14, Mar 28 - Apr 10 $25.55, Apr 10 2:44 pm $25.00, Feb 4 - Apr 10 $30.31, Apr 13 - Apr 25 $29.93, Apr 13 10:48 am $24.62, Apr 13 10:48 am $30.31, Apr 13 - Apr 25 $29.92, Apr 16 - Apr 25 $25.59, Apr 16 5:30 am $30.31, Apr 13 - Apr 25 $29.92, Apr 16 - Apr 25 $25.13, Apr 17 12:54 pm $30.31, Apr 13 - Apr 25 $29.92, Apr 16 - Apr 25 $25.52, Apr 20 4:13 am $30.31, Apr 13 - Apr 25 $29.92, Apr 16 - Apr 25 $25.45, Apr 22 8:32 pm $30.31, Apr 13 - Apr 25 $29.92, Apr 16 - Apr 25 $26.46, Apr 25 5:04 pm $30.31, Apr 28 - May 18 $29.96, Apr 28 - May 2 $26.72, Apr 28 5:16 pm $30.31, Apr 28 - May 18 $29.96, Apr 28 - May 2 $26.77, May 1 12:00 pm $30.31, Apr 28 - May 18 $29.96, Apr 28 - May 2 $26.67, May 2 - May 5 $30.81, May 5 2:36 pm $30.31, Apr 28 - May 18 $26.67, May 2 - May 5 $30.74, May 9 - May 12 $30.31, Apr 28 - May 18 $24.50, May 9 - May 12 $31.04, May 16 - May 18 $30.31, Apr 28 - May 18 $25.00, May 16 - May 18 $30.72, May 22 - May 31 $24.58, May 22 - May 31 $23.99, May 22 - May 31 $30.41, Jun 4 - Jun 9 $24.33, Jun 4 - Jun 9 $23.49, Jun 4 10:33 pm $30.41, Jun 4 - Jun 9 $24.33, Jun 4 - Jun 9 $22.74, Jun 9 5:41 am $30.10, Jun 12 - Jun 16 $24.08, Jun 12 - Jun 16 $21.99, Jun 12 - Jun 26 $29.80, Jun 20 - Jun 26 $26.35, Jun 20 11:47 am $21.99, Jun 12 - Jun 26 $29.80, Jun 20 - Jun 26 $23.84, Jun 24 - Jun 26 $21.99, Jun 12 - Jun 26 $29.30, Jun 30 6:44 am $25.00, Jun 30 - Aug 27 $23.44, Jun 30 6:44 am $29.00, Jul 4 11:57 am $25.00, Jun 30 - Aug 27 $23.20, Jul 4 11:57 am $26.38, Jul 10 3:14 am $25.00, Jun 30 - Aug 27 $21.10, Jul 10 3:14 am $26.11, Jul 14 - Aug 8 $25.00, Jun 30 - Aug 27 $20.89, Jul 14 - Aug 8 $26.16, Aug 12 - Aug 19 $25.00, Jun 30 - Aug 27 $20.93, Aug 12 7:40 am $26.67, Aug 16 1:57 am $26.16, Aug 12 - Aug 19 $25.00, Jun 30 - Aug 27 $32.19, Aug 19 - Sep 1 $26.16, Aug 12 - Aug 19 $25.00, Jun 30 - Aug 27 $32.19, Aug 19 - Sep 1 $31.30, Aug 23 - Aug 29 $25.00, Jun 30 - Aug 27 $32.19, Aug 19 - Sep 1 $31.30, Aug 23 - Aug 29 $24.50, Aug 29 12:32 am $32.19, Aug 19 - Sep 1 $27.57, Sep 1 - Sep 5 $23.03, Sep 1 5:12 pm $30.31, Sep 5 - Oct 5 $27.57, Sep 1 - Sep 5 $25.00, Sep 5 2:59 pm $30.31, Sep 5 - Oct 5 $26.46, Sep 9 - Oct 5 $21.94, Sep 9 - Oct 5 $27.57, Oct 9 5:59 am $23.03, Oct 9 - Oct 13 $23.03, Oct 9 5:59 am $32.95, Oct 13 - Jan 1 $24.50, Oct 13 - Nov 22 $23.03, Oct 9 - Oct 13 $32.95, Oct 13 - Jan 1 $24.50, Oct 17 - Nov 14 $24.50, Oct 13 - Nov 22 $32.95, Oct 13 - Jan 1 $24.50, Oct 13 - Nov 22 $22.01, Nov 18 - Dec 2 $32.95, Oct 13 - Jan 1 $25.00, Nov 27 8:51 am $22.01, Nov 18 - Dec 2 $32.95, Oct 13 - Jan 1 $24.50, Dec 2 - Dec 7 $22.01, Nov 18 - Dec 2 $32.95, Oct 13 - Jan 1 $25.89, Dec 7 2:40 am $24.50, Dec 2 - Dec 7 $32.95, Oct 13 - Jan 1 $25.00, Dec 12 - Dec 22 $24.95, Dec 12 - Dec 22 $32.95, Oct 13 - Jan 1 $25.72, Dec 27 - Jan 1 $24.90, Dec 27 3:16 pm $32.95, Oct 13 - Jan 1 $25.72, Dec 27 - Jan 1 $25.65, Jan 1 7:28 am $31.63, Jan 6 2:56 am $25.37, Jan 6 2:56 am $25.30, Jan 6 2:56 am $31.47, Jan 10 - Jan 15 $25.50, Jan 10 11:51 pm $21.42, Jan 10 - Jan 25 $31.47, Jan 10 - Jan 15 $21.42, Jan 10 - Jan 25 $21.35, Jan 15 - Jan 20 $31.31, Jan 20 11:14 pm $21.42, Jan 10 - Jan 25 $21.35, Jan 15 - Jan 20 $31.15, Jan 25 - Feb 20 $21.42, Jan 10 - Jan 25 $20.90, Jan 25 - Feb 10 $31.15, Jan 25 - Feb 20 $24.93, Jan 30 10:52 pm $20.90, Jan 25 - Feb 10 $31.15, Jan 25 - Feb 20 $24.34, Feb 5 2:09 am $20.90, Jan 25 - Feb 10 $31.15, Jan 25 - Feb 20 $24.94, Feb 10 - Feb 15 $20.90, Jan 25 - Feb 10 $31.15, Jan 25 - Feb 20 $24.94, Feb 10 - Feb 15 $24.90, Feb 15 12:13 pm $31.15, Jan 25 - Feb 20 $24.34, Feb 20 9:15 pm $24.30, Feb 20 - Feb 26 $32.95, Feb 26 - Mar 19 $24.33, Feb 26 8:22 am $24.30, Feb 20 - Feb 26 $32.95, Feb 26 - Mar 19 $24.28, Mar 8 6:12 am $24.25, Mar 8 6:12 am $32.95, Feb 26 - Mar 19 $24.35, Mar 19 4:21 pm $24.30, Mar 19 4:21 pm $31.63, Mar 31 - Apr 6 $25.88, Mar 31 3:09 am $23.88, Mar 31 3:09 am $31.63, Mar 31 - Apr 6 $30.84, Apr 6 12:49 am $24.36, Apr 6 12:49 am 127,425 1,332,492
1,562,500
1,171,875
781,250
390,625
0
Apr
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2015
2016
Price Details
New
Latest
$31.63 1 day ago
Highest
$32.95 Feb 26, '16
Lowest
$26.11 Jul 14, '15
Average
$32.69 (30d avg)
Added
Feb 4, 2015
3rd Party New
Latest
$24.36 1 day ago
Highest
$26.77 May 1, '15
Lowest
$21.42 Jan 10, '16
Average
$24.23 (30d avg)
Added
Feb 4, 2015
3rd Party Used
Latest
$30.84 1 day ago
Highest
$32.19 Aug 19, '15
Lowest
$20.89 Jul 14, '15
Average
$24.60 (30d avg)
Added
Feb 4, 2015
Sales Rank
30 day average: 646,574 859,820
Product Description
RTI isnt just about interventionsits about assessing how all students respond to instruction. Here, youll learn to translate RTI from research to practice and build a realistic plan of action for your school. Concrete recommendations and resources include:
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