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  • Mastery Teaching: Increasing Instructional Effectiveness in Elementary and Secondary Schools, Colleges, and Universities (Madeli

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Buy from Amazon $27.95$0.01 $37.50 $25.00 $12.50 Mar Jun Sep Dec Mar Jun Sep Dec Mar Jun 2014 2015 2016 $21.20, Dec 26 - Jan 3$20.98, Jan 4 - Jan 26$20.77, Jan 27 - Feb 5$20.56, Feb 5 - Apr 26$21.28, Apr 28 - May 17$21.28, Apr 28 - May 17$14.98, May 3 - Jun 3$3.70, May 3 - May 4$21.28, Apr 28 - May 17$14.98, May 3 - Jun 3$3.66, May 6 11:59 am$21.28, Apr 28 - May 17$14.98, May 3 - Jun 3$3.63, May 8 - May 12$21.28, Apr 28 - May 17$14.98, May 3 - Jun 3$5.00, May 14 8:34 am$21.28, Apr 28 - May 17$14.98, May 3 - Jun 3$7.99, May 15 - May 17$21.25, May 18 - Jun 14$14.98, May 3 - Jun 3$7.98, May 18 - May 26$21.25, May 18 - Jun 14$14.98, May 3 - Jun 3$7.95, May 28 12:16 am$21.25, May 18 - Jun 14$14.98, May 3 - Jun 3$7.94, May 28 - Jun 2$21.25, May 18 - Jun 14$14.98, May 3 - Jun 3$7.96, Jun 2 - Jun 3$21.25, May 18 - Jun 14$14.99, Jun 4 - Jun 14$7.93, Jun 4 11:08 pm$21.25, May 18 - Jun 14$14.99, Jun 4 - Jun 14$7.85, Jun 7 2:09 pm$21.25, May 18 - Jun 14$14.99, Jun 4 - Jun 14$7.75, Jun 10 7:23 am$21.25, May 18 - Jun 14$14.99, Jun 4 - Jun 14$7.77, Jun 11 10:04 pm$21.25, May 18 - Jun 14$14.99, Jun 4 - Jun 14$7.68, Jun 14 4:29 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.59, Jun 16 9:16 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.42, Jun 18 4:46 pm$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.33, Jun 21 12:17 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.25, Jun 23 5:40 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.12, Jun 25 12:47 pm$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$7.04, Jun 27 12:22 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$6.92, Jun 29 7:43 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$6.83, Jun 30 11:08 pm$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$6.68, Jul 3 8:47 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$6.49, Jul 5 4:53 pm$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$6.04, Jul 8 8:11 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$5.79, Jul 9 1:14 pm$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$5.54, Jul 12 12:57 am$22.10, Jun 14 - Sep 29$14.98, Jun 14 - Jul 14$5.37, Jul 14 3:39 pm$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$5.28, Jul 16 2:52 am$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$5.04, Jul 18 5:36 pm$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$4.87, Jul 20 8:32 pm$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$4.71, Jul 23 3:16 am$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$4.52, Jul 25 8:29 pm$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$4.45, Jul 27 2:36 pm$22.10, Jun 14 - Sep 29$14.97, Jul 16 - Jul 31$4.40, Jul 29 10:27 am$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$4.33, Aug 1 3:37 am$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$4.22, Aug 2 10:27 pm$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$4.09, Aug 5 5:35 pm$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$4.01, Aug 7 8:06 pm$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$3.92, Aug 9 11:46 pm$22.10, Jun 14 - Sep 29$13.99, Aug 1 - Aug 12$3.81, Aug 11 8:38 pm$22.10, Jun 14 - Sep 29$13.01, Aug 13 - Aug 22$3.74, Aug 13 5:35 pm$22.10, Jun 14 - Sep 29$13.01, Aug 13 - Aug 22$3.65, Aug 15 2:21 pm$22.10, Jun 14 - Sep 29$13.01, Aug 13 - Aug 22$3.55, Aug 17 7:44 pm$22.10, Jun 14 - Sep 29$13.01, Aug 13 - Aug 22$3.39, Aug 20 4:22 am$22.10, Jun 14 - Sep 29$13.01, Aug 13 - Aug 22$3.25, Aug 22 7:34 am$22.10, Jun 14 - Sep 29$13.00, Aug 23 - Sep 1$3.10, Aug 24 9:26 am$22.10, Jun 14 - Sep 29$13.00, Aug 23 - Sep 1$2.95, Aug 26 2:48 pm$22.10, Jun 14 - Sep 29$13.00, Aug 23 - Sep 1$2.85, Aug 28 6:42 pm$22.10, Jun 14 - Sep 29$13.00, Aug 23 - Sep 1$2.76, Aug 31 3:11 am$22.10, Jun 14 - Sep 29$12.97, Sep 2 11:15 am$2.59, Sep 2 11:15 am$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.46, Sep 4 8:40 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.37, Sep 7 4:29 am$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.31, Sep 8 8:13 am$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.20, Sep 10 2:41 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.11, Sep 12 11:32 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$2.03, Sep 14 10:16 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$1.78, Sep 20 1:45 am$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$1.65, Sep 22 4:24 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$1.55, Sep 24 8:38 pm$22.10, Jun 14 - Sep 29$13.00, Sep 3 - Sep 28$1.51, Sep 28 1:03 am$22.10, Jun 14 - Sep 29$11.95, Sep 29 3:19 am$1.44, Sep 29 3:19 am$25.04, Oct 1 - Oct 4$10.99, Oct 1 - Oct 10$1.37, Oct 1 - Oct 2$25.04, Oct 1 - Oct 4$10.99, Oct 1 - Oct 10$1.36, Oct 4 10:58 am$22.10, Oct 6 - Dec 11$10.99, Oct 1 - Oct 10$1.35, Oct 6 12:33 pm$22.10, Oct 6 - Dec 11$10.99, Oct 1 - Oct 10$1.45, Oct 8 - Oct 10$22.10, Oct 6 - Dec 11$11.00, Oct 12 7:11 pm$1.40, Oct 12 7:11 pm$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.36, Oct 14 9:43 pm$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.45, Oct 17 6:37 am$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.43, Oct 19 10:46 am$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.39, Oct 21 3:06 pm$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.29, Oct 23 10:36 pm$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.14, Oct 29 6:20 pm$22.10, Oct 6 - Dec 11$10.99, Oct 14 - Nov 4$1.02, Nov 4 7:32 am$22.10, Oct 6 - Dec 11$10.96, Nov 10 12:20 pm$0.84, Nov 10 12:20 pm$22.10, Oct 6 - Dec 11$10.88, Nov 15 7:43 pm$0.71, Nov 15 7:43 pm$22.10, Oct 6 - Dec 11$10.81, Nov 18 11:36 pm$0.67, Nov 18 11:36 pm$22.10, Oct 6 - Dec 11$10.78, Nov 21 - Nov 25$0.64, Nov 21 2:53 am$22.10, Oct 6 - Dec 11$10.78, Nov 21 - Nov 25$0.61, Nov 23 4:03 am$22.10, Oct 6 - Dec 11$10.78, Nov 21 - Nov 25$0.57, Nov 25 8:36 am$22.10, Oct 6 - Dec 11$10.76, Nov 27 4:12 am$0.56, Nov 27 4:12 am$22.10, Oct 6 - Dec 11$10.74, Nov 29 2:46 am$0.52, Nov 29 2:46 am$22.10, Oct 6 - Dec 11$10.68, Dec 2 10:56 pm$0.46, Dec 2 10:56 pm$22.10, Oct 6 - Dec 11$10.64, Dec 4 9:16 pm$2.92, Dec 4 9:16 pm$22.10, Oct 6 - Dec 11$10.63, Dec 6 - Dec 8$2.96, Dec 6 6:22 pm$22.10, Oct 6 - Dec 11$10.63, Dec 6 - Dec 8$2.95, Dec 8 7:55 pm$22.10, Oct 6 - Dec 11$10.62, Dec 11 1:46 am$2.91, Dec 11 1:46 am$22.65, Dec 12 - Dec 16$10.59, Dec 12 11:19 pm$2.88, Dec 12 11:19 pm$22.65, Dec 12 - Dec 16$10.58, Dec 14 9:02 pm$2.84, Dec 14 9:02 pm$22.65, Dec 12 - Dec 16$10.57, Dec 16 8:15 pm$2.75, Dec 16 8:15 pm$23.75, Dec 21 - Jan 18$10.54, Dec 21 - Dec 23$2.93, Dec 21 - Dec 24$23.75, Dec 21 - Jan 18$10.53, Dec 24 2:45 am$2.93, Dec 21 - Dec 24$23.75, Dec 21 - Jan 18$10.51, Dec 26 3:31 am$2.30, Dec 26 3:31 am$23.75, Dec 21 - Jan 18$10.48, Dec 27 8:18 am$1.69, Dec 27 8:18 am$23.75, Dec 21 - Jan 18$10.45, Dec 30 4:01 pm$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.43, Jan 1 6:28 am$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.39, Jan 4 10:23 am$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.35, Jan 6 2:11 pm$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.33, Jan 7 - Jan 8$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.31, Jan 9 8:54 pm$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.29, Jan 11 - Jan 12$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.27, Jan 13 9:05 pm$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.23, Jan 15 - Jan 17$0.01, Dec 30 - Feb 13$23.75, Dec 21 - Jan 18$10.19, Jan 18 10:43 pm$0.01, Dec 30 - Feb 13$25.37, Jan 20 - Jan 23$10.99, Jan 20 - Feb 18$0.01, Dec 30 - Feb 13$24.96, Jan 25 - Feb 1$10.99, Jan 20 - Feb 18$0.01, Dec 30 - Feb 13$24.77, Feb 3 - Feb 9$10.99, Jan 20 - Feb 18$0.01, Dec 30 - Feb 13$24.83, Feb 11 - Feb 16$10.99, Jan 20 - Feb 18$0.01, Dec 30 - Feb 13$24.83, Feb 11 - Feb 16$10.99, Jan 20 - Feb 18$0.34, Feb 14 8:55 pm$24.70, Feb 18 - Mar 31$10.99, Jan 20 - Feb 18$0.70, Feb 18 5:31 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$0.54, Feb 20 2:42 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$0.91, Feb 22 12:55 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$0.55, Feb 24 10:54 am$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$1.21, Feb 26 - Mar 10$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$2.97, Mar 12 - Mar 17$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$2.06, Mar 19 6:48 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$2.01, Mar 22 12:40 am$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$1.70, Mar 24 7:54 am$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$1.59, Mar 26 2:28 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$1.56, Mar 28 10:12 pm$24.70, Feb 18 - Mar 31$7.00, Feb 20 - Apr 24$1.50, Mar 31 7:15 am$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$1.38, Apr 2 10:44 pm$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$1.55, Apr 5 1:20 pm$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.23, Apr 8 4:51 am$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.57, Apr 11 12:08 am$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.87, Apr 13 6:06 pm$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.69, Apr 16 10:59 am$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.50, Apr 19 4:13 am$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$2.18, Apr 21 7:34 pm$24.57, Apr 2 - Apr 24$7.00, Feb 20 - Apr 24$1.94, Apr 24 2:14 pm$24.44, Apr 27 - May 1$7.00, Apr 27 - Jun 23$1.55, Apr 29 3:48 am$24.44, Apr 27 - May 1$7.00, Apr 27 - Jun 23$1.34, May 1 10:37 pm$24.31, May 4 - May 14$7.00, Apr 27 - Jun 23$1.20, May 4 12:56 pm$24.31, May 4 - May 14$7.00, Apr 27 - Jun 23$1.02, May 7 5:26 pm$24.31, May 4 - May 14$7.00, Apr 27 - Jun 23$0.80, May 11 10:17 am$24.31, May 4 - May 14$7.00, Apr 27 - Jun 23$0.65, May 14 4:03 pm$24.18, May 18 - Jun 5$7.00, Apr 27 - Jun 23$0.74, May 18 8:22 pm$24.18, May 18 - Jun 5$7.00, Apr 27 - Jun 23$0.46, May 23 12:24 am$24.18, May 18 - Jun 5$7.00, Apr 27 - Jun 23$0.18, May 27 8:10 am$24.18, May 18 - Jun 5$7.00, Apr 27 - Jun 23$0.01, May 31 10:29 pm$24.18, May 18 - Jun 5$7.00, Apr 27 - Jun 23$0.24, Jun 5 1:38 pm$26.55, Jun 9 - Jun 19$7.00, Apr 27 - Jun 23$0.37, Jun 9 7:21 pm$26.55, Jun 9 - Jun 19$7.00, Apr 27 - Jun 23$0.23, Jun 13 5:04 pm$26.55, Jun 9 - Jun 19$7.00, Apr 27 - Jun 23$0.05, Jun 15 3:38 pm$26.55, Jun 9 - Jun 19$7.00, Apr 27 - Jun 23$0.01, Jun 19 - Jun 23$26.41, Jun 23 - Jul 3$7.00, Apr 27 - Jun 23$0.01, Jun 19 - Jun 23$26.41, Jun 23 - Jul 3$13.00, Jun 26 - Jul 5$3.82, Jun 26 11:39 pm$26.41, Jun 23 - Jul 3$13.00, Jun 26 - Jul 5$1.93, Jul 1 1:10 am$26.41, Jun 23 - Jul 3$13.00, Jun 26 - Jul 5$2.30, Jul 3 3:48 am$26.27, Jul 5 - Jul 18$13.00, Jun 26 - Jul 5$1.88, Jul 5 8:31 am$26.27, Jul 5 - Jul 18$10.98, Jul 10 - Jul 14$4.61, Jul 10 8:31 pm$26.27, Jul 5 - Jul 18$10.98, Jul 10 - Jul 14$5.08, Jul 14 5:29 pm$26.27, Jul 5 - Jul 18$13.00, Jul 18 8:32 am$0.21, Jul 18 8:32 am$26.13, Jul 22 - Jul 25$10.98, Jul 22 - Aug 1$0.15, Jul 22 12:57 am$26.13, Jul 22 - Jul 25$10.98, Jul 22 - Aug 1$0.01, Jul 25 - Aug 12$25.99, Jul 29 - Aug 1$10.98, Jul 22 - Aug 1$0.01, Jul 25 - Aug 12$24.69, Aug 5 - Aug 9$10.96, Aug 5 10:12 am$0.01, Jul 25 - Aug 12$24.69, Aug 5 - Aug 9$10.98, Aug 9 - Sep 16$0.01, Jul 25 - Aug 12$23.45, Aug 12 - Aug 16$10.98, Aug 9 - Sep 16$0.01, Jul 25 - Aug 12$23.45, Aug 12 - Aug 16$10.98, Aug 9 - Sep 16$0.99, Aug 16 5:11 pm$22.27, Aug 20 - Aug 26$10.98, Aug 9 - Sep 16$0.94, Aug 20 11:52 am$22.27, Aug 20 - Aug 26$10.98, Aug 9 - Sep 16$5.11, Aug 24 7:23 am$22.27, Aug 20 - Aug 26$10.98, Aug 9 - Sep 16$4.45, Aug 26 6:10 am$21.15, Aug 28 - Aug 31$10.98, Aug 9 - Sep 16$5.99, Aug 28 - Aug 31$20.21, Sep 4 - Dec 11$10.98, Aug 9 - Sep 16$7.91, Sep 4 7:23 pm$20.21, Sep 4 - Dec 11$10.98, Aug 9 - Sep 16$5.99, Sep 8 - Sep 12$20.21, Sep 4 - Dec 11$10.98, Aug 9 - Sep 16$5.83, Sep 16 11:33 am$20.21, Sep 4 - Dec 11$13.00, Sep 20 8:33 am$4.91, Sep 20 8:33 am$20.21, Sep 4 - Dec 11$11.00, Sep 24 7:01 am$4.77, Sep 24 7:01 am$20.21, Sep 4 - Dec 11$13.00, Sep 28 4:18 am$4.99, Sep 28 4:18 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$2.32, Oct 2 5:28 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.99, Oct 4 - Nov 1$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.89, Nov 5 3:58 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.82, Nov 9 6:55 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.72, Nov 13 9:27 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.62, Nov 17 4:21 pm$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.57, Nov 22 1:37 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.53, Nov 26 12:24 pm$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.47, Dec 1 8:55 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.40, Dec 6 6:10 am$20.21, Sep 4 - Dec 11$10.98, Oct 2 - Feb 14$1.36, Dec 11 8:46 am$21.11, Dec 16 - Jan 20$10.98, Oct 2 - Feb 14$1.20, Dec 16 9:50 am$21.11, Dec 16 - Jan 20$10.98, Oct 2 - Feb 14$1.09, Dec 21 7:37 am$21.11, Dec 16 - Jan 20$10.98, Oct 2 - Feb 14$1.03, Dec 26 9:07 pm$21.11, Dec 16 - Jan 20$10.98, Oct 2 - Feb 14$0.97, Dec 31 12:55 pm$21.11, Dec 16 - Jan 20$10.98, Oct 2 - Feb 14$0.01, Jan 5 - Feb 25$27.95, Jan 25 - Feb 14$10.98, Oct 2 - Feb 14$0.01, Jan 5 - Feb 25$26.55, Feb 19 - Mar 17$10.89, Feb 19 - Mar 29$0.01, Jan 5 - Feb 25$26.55, Feb 19 - Mar 17$10.89, Feb 19 - Mar 29$0.70, Mar 6 12:43 pm$26.55, Feb 19 - Mar 17$10.89, Feb 19 - Mar 29$0.79, Mar 17 11:32 pm$25.22, Mar 29 12:05 pm$10.89, Feb 19 - Mar 29$0.64, Mar 29 12:05 pm 26,0781,409,869 1,562,500 1,171,875 781,250 390,625 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Last Seen $25.22 Mar 29, '16
Highest $27.95 Jan 25, '16
Lowest $20.21 Sep 4, '15
Average $26.55 (30d avg)
$25.40 (90d avg)
$22.88 (180d avg)
$23.51 (365d avg)
$22.78 (Lifetime average)
Added Dec 26, 2013

3rd Party New

Last Seen $10.89 Mar 29, '16
Highest $14.99 Jun 4, '14
Lowest $7.00 Apr 27, '15
Average $10.89 (30d avg)
$10.94 (90d avg)
$10.96 (180d avg)
$10.15 (365d avg)
$11.00 (Lifetime average)
Added Dec 26, 2013

3rd Party Used

Last Seen $0.64 Mar 29, '16
Highest $7.99 May 15, '14
Lowest $0.01 Jan 5, '16
Average $0.75 (30d avg)
$0.25 (90d avg)
$0.96 (180d avg)
$1.55 (365d avg)
$2.18 (Lifetime average)
Added Dec 26, 2013

Sales Rank

30 day average: 810,950
90 day average: 848,939

Product Description

Increase students' learning and retention with the expert teachings of this gifted educator. A useful resource for the beginning teacher or the experienced veteran, this classic has sold more than 100,000 copies and is still going strong.

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